Practice Test

Q1) Homologous organs are: Show Answer

Q2) Analogous organs are those which are: Show Answer

Q3) One of the following is not a vestigial organ: Show Answer

Q4) Biogenetic law was given by: Show Answer

Q5) Vestigial organs are those: Show Answer

Q6) The earliest age in the geological record is: Show Answer

Q7) The carboniferous period during which amphibian flourished, occurred approximately: Show Answer

Q8) The permian period, during which most modern orders of insects appeared, occurred approximately: Show Answer

Q9) Macroevolution is the evolution of: Show Answer

Q10) A structure, such as feather that evolved in one context and was then used for a completely new function is a: Show Answer

Q11) Retention in an adult organism of juvenile features of its ancestor is known as: Show Answer

Q12) The wings of a bird and the forelegs of horse are: Show Answer

Q13) The pelvis and the leg bones of snake are: Show Answer

Q14) The best test of the relatedness of the species is in the similarity of their: Show Answer

Q15) George Cuvier realized that the history of life is recorded in fossils and believed that replace of one species by another is caused by: Show Answer

Q16) Most fossils are found in: Show Answer

Q17) Of all the living species that ever lived approximately how many have gone extinct? Show Answer

Q18) For origin of life most important condition is: Show Answer

Q19) The richest source of fossils is: Show Answer

Q20) The fossil animals which show characters of two different groups of animals are called as: Show Answer

Q21) The Haeckel's theory of recapitulation (Biogenetic Law) means that: Show Answer

Q22) Who established the precipitation method of blood tests for finding out the inter-relationshhip among different animals: Show Answer

Q23) The connecting link between chordates and non-chordates is: Show Answer

Q24) Which of the following would be easily fossilized? Show Answer

Q25) Which of the following is a living fossil? Show Answer

Q26) Archaeozoic era is considered as age of: Show Answer

Q27) Geologically one of the following eras is known as 'Age of Reptiles' or 'Golden age of Dinosaurs.' Show Answer

Q28) Appearance of teeth in the embryos of birds is an example of: Show Answer

Q29) Archaeopteryx is a missing line between: Show Answer

Q30) Dinosaurs are extinct: Show Answer

Q31) Some of the important evidences of organic evolution are: Show Answer

Q32) Which of the following is not a vestigial organ in man? Show Answer

Q33) Which of the following are the examples of analogous structures? Show Answer

Q34) Blood groups A, B, AB and O occur in humans. The blood groups A and B are found in apes but not in monkeys. This suggests that: Show Answer

Q35) Which one of the following are homologous? Show Answer

Q36) Which of the following illustrates palaeontological evidence in favour of organic evolution? Show Answer

Q37) Evolutionary changes occurring in distantly related organisms are classified as: Show Answer

Q38) Which of the following are homologous? Show Answer

Q39) Which of the following is an extinct animal? Show Answer

Q40) A fossil is a: Show Answer

Q41) Which of the following is vestigial organ in man? Show Answer

Q42) Successful adaptation simply means: Show Answer

Q43) The law of superposition is associated with: Show Answer

Q44) How many million years is the age of oldest rock on earth? Show Answer

Q45) Fossil of Archaeopteryx is place in: Show Answer

Q46) Which of the following is most primitive mammal? Show Answer

Q47) Birds of Galapagos island were named as Darwin's finches by: Show Answer

Q48) Which one of the following groups are not analogous organs? Show Answer

Q49) Haeckel's recapitulation theory was based on: Show Answer

Q50) The dating of rocks is done by calculating the ratio between which of the following pairs in the igneous rocks associated with sedimentary rocks: Show Answer

Q51) Which animals dominated in Palaeozoic era? Show Answer

Q52) Which is supposed to be largest known fossils of reptile? Show Answer

Q53) Analogous organs have a: Show Answer

Q54) Birds evolved from: Show Answer

Q55) Possession of venoms in animals is an attribute to: Show Answer

Q56) First mammals occurred in which era period? Show Answer

Q57) Appearance of ancestral characters in the new borns, such as tail, multiple mammae etc. are known as: Show Answer

Q58) Correct sequence is: Show Answer

Q59) A bird with teeth is: Show Answer

Q60) The recapitulation of protozoan ancestry is seen in: Show Answer

Q61) The term used for similarity in organ structure seen in great diversity is: Show Answer

Q62) Homologous organs are those that show similarity in: Show Answer

Q63) Which of the following is a connecting link? Show Answer

Q64) Which set includes all vestigial structures of man? Show Answer

Q65) Mesozoic era is the era of: Show Answer

Q66) Most evident source of evolution is: Show Answer

Q67) A scene of Jurassic period: Dinosaurs roaming in carboniferous forests, eating plants, killing each other and being eaten by lions and tigers. What is the catch? Show Answer

Q68) Free caudal vertebrae occurred in fossil Archaeopteryx. The trait is: Show Answer

Q69) Gondwana Land comprised: Show Answer

Q70) Origin of different finches on Galapagos islands is an example of: Show Answer

Q71) Related species of Alligators and Magnolias occur in: Show Answer

Q72) Neoceratodus is a connecting link between: Show Answer

Q73) Which of the following are connecting links? Show Answer

Q74) Tachyglossus is a connecting link between: Show Answer

Q75) Why do we dig fossils and study them? Show Answer

Q76) Which one of the following is used for dating archaeological specimens in wood, bones and shells? Show Answer

Q77) Physiological evidence in favour of evolution is demonstrated by: Show Answer

Q78) Being all mammals, whale, dolphin, bat, monkey and horse have some important common characters but they also show conspicuous difference. This is due to the phenomenon of: Show Answer

Q79) The Lederberg Replica-Plating experiment has proved in evolution, the role of: Show Answer

Q80) Pliohippus arose in: Show Answer

Q81) Amphibia first appeared in: Show Answer

Q82) Dinosaurs were abundant in: Show Answer

Q83) Which of the following statements is wrong? Show Answer

Q84) Some insects, such as cockroach have biting and chewing mouth parts, housefly has sponging type of mouth parts, whereas a mosquito has piercing and sucking mouth parts. These various types of mouth parts are example of: Show Answer

Q85) According to the geologic time-table, man belongs to: Show Answer

Q86) For how many years have the dinosaurs been extinct? Show Answer

Q87) When did the first forest appear? Show Answer

Q88) The word 'Dinosaur' was invented by: Show Answer

Q89) Which one of the following fossils represent a connecting link between evolution of mammal from reptiles? Show Answer

Q90) Birbal Sahni Institute of Palaeobotany is located at: Show Answer

Q91) Monera evolved during: Show Answer

Q92) Age of trilobites is: Show Answer

Q93) Epoch in which first man-like creatures evolved was: Show Answer

Q94) What are the fossil contents of alimentary canals known as? Show Answer

Q95) During fossilisation soft parts decompose and harder parts are impregnated with minerals and turn into stony shapes and are called: Show Answer

Q96) The origin of first mammals occurred: Show Answer

Q97) The term orthogenesis means: Show Answer

Q98) The term orthogenesis was proposed by: Show Answer

Q99) Oldest fossils of land animals consist of: Show Answer

Q100) Age of mammals and birds is known as: Show Answer

Q101) Which of the following were the dominant animals of Palaeozoic era? Show Answer

Q102) Founder of modern palaeontology is: Show Answer

Q103) Remains of woolly Mammoth found in permafrost of Siberia are: Show Answer

Q104) Pompeii city got buried in lava of mount Vasurius during: Show Answer

Q105) Compressions are a type of fossils having: Show Answer

Q106) Fossil of Archaeopteryx were found from: Show Answer

Q107) Birds are glorified reptile have been proved by the discovery of fossil which resembles bird and reptiles both: Show Answer

Q108) What is the appearance of ancestral characters in an individual called? Show Answer

Q109) Proteus anguinus is characterised by vestigial: Show Answer

Q110) Flightless bird of Australia is: Show Answer

Q111) An incompletely three chambered heart occurs in: Show Answer

Q112) Sacculina shows: Show Answer

Q113) Who proposed for the first time that developing animal embryo passes through stages resembling adults of its ancestors: Show Answer

Q114) Replacement of original hard parts or even the soft tissues of the organisms by minerals is known as: Show Answer

Q115) Stings develop from: Show Answer

Q116) Cycas and Ginkgo are connecting links between: Show Answer

Q117) Which one of the following animal has been extinct recently? Show Answer

Q118) Analogous organs with similar external morphology are called: Show Answer

Q119) Possession of accessory respiratory organ in Anabas is an example of: Show Answer

Q120) How dinosaurs became extinct? There are many hypotheses. One mostly accepted is: Show Answer

Q121) Find the odd man out: Show Answer

Q122) The biggest and heaviest dinosaur was: Show Answer

Q123) The first fossil bird found in the orcks of Jurassic period belong to genera: Show Answer

Q124) In Birbal Sahni Institute of Palaeobotany in Lucknow, 3.2 billion year old rocks are kept which have fossils of: Show Answer

Q125) The flowering plants originated in: Show Answer

Q126) The study of the fossil plants is known as: Show Answer

Q127) Point out the correct statement regarding the evolution of horse: Show Answer

Q128) What is the recent example of mass extinction of organisms? Show Answer

Q129) Plants which are naturally fast disappearing from the scene are: Show Answer

Q130) Find the odd man out: Show Answer

Q131) Which of the following rules state that organisms have a tendency towards increase in size during their evolution? Show Answer

Q132) Different groups of plants (and also animals) have similar proteins. What is the type of evidence? Show Answer

Q133) Who among the following postulated the theory that during development embryo adds, omits, modifies, condenses and accelerates certain events of phylogeny? Show Answer

Q134) As per geological time scale, hominids evolved during: Show Answer

Q135) From which of the following did the modern horse called Equus arise in the early Cenozoic era? Show Answer

Q136) In human beings canine teeth are: Show Answer

Q137) One of the following is taken as evidence of evolution. Which one? Show Answer

Q138) Which of the following is not a volant (aerial) adaptation? Show Answer

Q139) Which one of the following evolved during Pliocene epoch? Show Answer

Q140) Radioactive carbon method was introduced by: Show Answer

Q141) Which one of the following answers molecular homology? Show Answer

Q142) Which one of the following animals exhibits connecting link in evoltuion between amphibia and reptiles? Show Answer

Q143) Mammals evolved from therapsid reptiles in Triassic period. The type of skull in these reptiles is: Show Answer

Q144) Trilobite is an extinct: Show Answer

Q145) Scientists of Birbal Sahni Institute, Lucknow have discovered 260 million years old coal forming fossils in: Show Answer

Q146) In general, in the developmental history of mammalian heart. It is observed that it passes through a two-chambered fish like heart, three chambered frog-like heart and finally four chambered stage to which hypothesis can this above called cited statement be approximated: Show Answer

Q147) Modern theory of organic evolution is based on: Show Answer

Q148) Nature has provided the organisms the ability to produce at high rate. What is its opposing force? Show Answer

Q149) The material for organic evolution is: Show Answer

Q150) Phylogeny tells about: Show Answer

Q151) Trilobites were more common in the period: Show Answer

Q152) The wings of an insect and a bat exhibit: Show Answer

Q153) Which of the following includes all homologous organs? Show Answer

Q154) From a group of similar mammals some have adapted for running, flying and swimming etc. This is an example of: Show Answer

Q155) Long snout, claws curved backwards and small eyes are characteristics of: Show Answer

Q156) Fossils of prokaryotic and eukaryotic cells were first discovered in rocks of: Show Answer

Q157) Animals of cold countries have shorter ears. This is: Show Answer

Q158) Dinosaurs appeared after which era: Show Answer

Q159) Presence of gill slits in the embryos of all vertebrates supports the theory of: Show Answer

Q160) Which era is dubbed as the age of prokaryotic microbes: Show Answer

Q161) Ostracoderms were the first jawless, finless fishes which represented the first vertebrates in the: Show Answer

Q162) Mesozoic is the: Show Answer

Q163) "A scientist cut the tail of mouse for many generations but their young ones have the tail". This condition disproved which of the following theories: Show Answer

Q164) Which is the most evident proof of evolution? Show Answer

Q165) Two geographical regions separated by high mountains are: Show Answer

Q166) The earliest fossil form in the phylogeny of horse is: Show Answer

Q167) Which one provides direct and solid evidence in favour of organic evolution through ages? Show Answer

Q168) Fossil remains of Archaeopteryx indicates that: Show Answer

Q169) Which animals has become extinct recently? Show Answer

Q170) Angiosperms flourished during: Show Answer

Q171) Carboniferous period of coal deposition was: Show Answer

Q172) Dinosaurs disappeared during: Show Answer

Q173) Fossilisation is: Show Answer

Q174) Adaptive similarities in animals of the same habitat constitute: Show Answer

Q175) Homologous organs show: Show Answer

Q176) Which one is not vestigial in humans? Show Answer

Q177) Coal has been mainly formed by: Show Answer

Q178) Darwin's finches provide evidence of evolution from: Show Answer

Q179) Vestigial pelvic girdle and bone remnants of hind limbs are characteristic of: Show Answer

Q180) Monkeys and some lower groups have certain blood groups which are: Show Answer

Q181) Heart is four chambered in: Show Answer

Q182) Living organism with oldest fossil history is: Show Answer

Q183) Homologous organs are: Show Answer

Q184) Occurrence of endemic species in South America and Australia is due to: Show Answer

Q185) Similarities in organisms with different genotype indicates: Show Answer

Q186) Convergent evolution is illustrated by: Show Answer

Q187) Which one of the following is categorized under living fossils? Show Answer

Q188) In which branch we study about remains of plant life? Show Answer

Q189) Flippers of seal are modified: Show Answer

Q190) A baby was born with a small tail. It is a case of exihibiting: Show Answer

Q191) Age of fossils in the past was determined by radioactive carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of evolutionary periods from different groups of organisms: Show Answer

Q192) Potato and sweet potato have edible parts which are: Show Answer

Q193) Which of the following is not vestigial organ in humans? Show Answer

Q194) Which of these pairs is vestigial? Show Answer

Q195) Which of the following is the relatively most accurate method for dating of fossils? Show Answer

Q196) Evolutionary history of an organism is known as: Show Answer

Q197) Which one of the following is not a living fossil? Show Answer

Q198) An important evidence in favour of organic evolution is the occurrence of: Show Answer

Q199) The example which best explain the atavism is: Show Answer

Q200) Which of the following gives the correct evidence from connecting link? Show Answer

Q201) Jurassic period of the Mesozoic era is characterised by: Show Answer

Q202) Which one of the following statement is correct? Show Answer

Q203) The Finches of Galapogas islands provide an evidence in favour of: Show Answer

Q204) Myrmecobius and Myrmecophaga are closely related and have similar adaptations for the same habitat. This phenomenon is: Show Answer

Q205) Mark the wrong match: Show Answer

Q206) Which of the statement is incorrect w. r. t. palaeontology? Show Answer

Q207) Four fingers and one splint bone in fore-foot; three toes and two splint in hind foot is the characteristics of: Show Answer

Q208) Set which includes only analogous organs is: Show Answer

Q209) Which have not left any evidences of organic evolution? Show Answer

Q210) Example of analogous organs is: Show Answer

Q211) Which extinct animal shows evidences of evolution? Show Answer

Q212) Two organs which are similar in structure and origin, but not necessarily in function are called: Show Answer

Q213) Man evolved in: Show Answer

Q214) A connecting link between reptiles and birds is: Show Answer

Q215) Wings of Mosquito, Bat and Bird show evolution called: Show Answer

Q216) The evolution is studied in per unit of: Show Answer

Q217) Rule of embryonic development was given by: Show Answer

Q218) Birbal Sahni worked on: Show Answer

Q219) Dinosaurs gave rise to: Show Answer

Q220) Study of fossils comes under: Show Answer

Q221) In human beings vestigial organs are: Show Answer

Q222) Rabbit can move its external ears but man cannot. This is because: Show Answer

Q223) Grazing mammals and grasslands evolved side by side during which period: Show Answer

Q224) Organic evolution means Show Answer

Q225) Diversity of living organisms is due to Show Answer

Q226) Which one of the following scientists is not related with organic evolution? Show Answer

Q227) Darwin's finches provide an excellent evidence in favour of evolution. This evidence comes from the field of Show Answer

Q228) Darwin saw that populations of Galapagos finches Show Answer

Q229) Darwin's finches represent Show Answer

Q230) The classical example of adaptive radiation in development of new species is Show Answer

Q231) Two zoogeographical regions separated by high mountain ranges are Show Answer

Q232) Parallelism is adaptive Show Answer

Q233) Tasmanian wolf is a marsupial while wolf is a placental mammal. This shows Show Answer

Q234) Egg laying mammals and marsupials are found in Australia and nowhere else. This indicates Show Answer

Q235) The organs of different species that are related to each other through common descent though become functionally different are called Show Answer

Q236) The organs which look different but have the same basic structure and origin are known as Show Answer

Q237) Homology does not refer to Show Answer

Q238) Which is incorrect? Show Answer

Q239) Which group includes homologous organs? Show Answer

Q240) Which of the following are homologous organs? Show Answer

Q241) Which one of the following pairs has homologous organs? Show Answer

Q242) Thorn of Bougainvillea and tendril of Cucurbita are examples of Show Answer

Q243) Although all mammals whale, dolphin, bat, monkey and horse have some important common characters, but they also show conspicuous differences. This is due to the phenomenon of Show Answer

Q244) The evidence for the origin of birds from reptiles is the presence in them of Show Answer

Q245) Which of the following are homologous organs? Show Answer

Q246) Hand of man, wing of bat and flipper of seal represent Show Answer

Q247) Analogous structures are Show Answer

Q248) Which of the following are analogous organs? Show Answer

Q249) Which pair of organs are analogous in nature? Show Answer

Q250) Which of the following pairs is correct? Show Answer

Q251) Which of the following are not analogous organs? Show Answer

Q252) Eyes of an Octopus and mammals appear quite similar, but these are different in their basic structure and origin heave they are Show Answer

Q253) Convergent evolution of two species is associated with Show Answer

Q254) Evolutionary convergence in the development of Show Answer

Q255) Convergent evolution is shown by Show Answer

Q256) Examples of vestigial organs in the human body are Show Answer

Q257) Which is a set of evidence of evolution? Show Answer

Q258) Which of the following is not an atavistic character? Show Answer

Q259) A baby has been born with a small tail. It is case exhibiting Show Answer

Q260) Appearance of profuse hairs on the body and face of iris dog-man is an example of Show Answer

Q261) Evolutionary history of a group of organisms is called Show Answer

Q262) Which of the following statement is false?
I. The rules of embryonic development were given by Von Baer.
II. Recapitulation theory was proposed by Haeckel.
III. Haeckel's theory of recapitulation states that ontogeny repeats phylogeny.
IV. Ontogeny recapitulates phylogeny is the brief definition of Bio-genetic law. Show Answer

Q263) Presence of gills in the tadpole of frog indicates that Show Answer

Q264) All organisms share the same genetic code. This supports that Show Answer

Q265) The most direct evidence of organic evolution is Show Answer

Q266) Fossil evidence of evolution is called Show Answer

Q267) Fossils are studied for Show Answer

Q268) Fossilization would occur when flora and fauna are buried by Show Answer

Q269) Birbal Sahni was a Show Answer

Q270) The fossils are preserved in Show Answer

Q271) What conclusion is drawn about stratification of a fossil? Show Answer

Q272) Fossil X is older than fossil Y because Show Answer

Q273) The type of fossil where hard parts like bones, teeth or trunk of trees are preserved Show Answer

Q274) The material used in determining the age of a fossil is Show Answer

Q275) Carbon dating is best suited for determining the age of fossils if their age in years is of the order of Show Answer

Q276) Correct order is Show Answer

Q277) As evident from fossil records which era had no life? Show Answer

Q278) Mesozoic era is the age of Show Answer

Q279) In which of the following periods dinosaurs were maximum developed? Show Answer

Q280) Dinosaurs became extinct during Show Answer

Q281) Which era could be called "age of mammals and birds"? Show Answer

Q282) The first mammal appeared in Show Answer

Q283) Which of the following is the correct order of evolution? Show Answer

Q284) The pioneers in the field of 'organic evolution' are Show Answer

Q285) The first attempt to solve the problem of mechanism of organic evolution was made by Show Answer

Q286) The book "Philosophic Zoologique" was written by Show Answer

Q287) The theory of use and disuse of organs was given by Show Answer

Q288) "Theory of Continuity of Germplasm" was propounded by Show Answer

Q289) According to Lamarckism, long necked giraffes evolved because Show Answer

Q290) Which of the following evidence does not favour the Lamarckian concept of inheritance of acquired characters? Show Answer

Q291) Natural selection theory was proposed by Darwin along with Show Answer

Q292) Darwin traveled in which ship? Show Answer

Q293) Darwin proposed that new species evolve from ancestral forms by the Show Answer

Q294) Which of the following is not a part of Darwin's theory of evolution? Show Answer

Q295) Survival of fittest is possible due to Show Answer

Q296) The idea of "Survival of Fittest" was originally introduced by Show Answer

Q297) The theory of natural selection of Darwin Show Answer

Q298) Darwin was influenced by reading the essays of Show Answer

Q299) Which of the following was NOT part of Darwin's explanation of natural selection? Show Answer

Q300) Who wrote the book "The Origin of Species"? Show Answer

Q301) The book "The Origin of Species" was published in Show Answer

Q302) One of the several objections to natural selection theory of Darwin is Show Answer

Q303) In which case is Darwin's theory wrong? Show Answer

Q304) Which one provides correct sequence of events in origin of species according to Darwinism?
1. Natural selection
2. Variations and their inheritance
3. Survival of fittest
4. Struggle for existence Show Answer

Q305) Diversity in the types of beaks of finches adapted to different feeding habits on the Galapagos Islands, as observed by Darwin provides evidence for Show Answer

Q306) Prodigality of reproduction in Darwinism refers to Show Answer

Q307) 'Theory of pangenesis' was proposed by Show Answer

Q308) Which of the following could not be explained by the 'Darwin's Natural Selection Theory'? Show Answer

Q309) Which one of the following phenomena supports Darwin's concept of natural selection in organic evolution? Show Answer

Q310) Hugo de Vries theory of mutation Show Answer

Q311) Hugo de Vries pioneered the theory of mutations to explain the mechanism of evolution material on which he had experimented was Show Answer

Q312) Hugo de Vries gave his mutation theory on organic evolution while working on Show Answer

Q313) The most accepted and recent theory of organic evolution is Show Answer

Q314) 'Modern synthetic theory of evolution' is the result of Show Answer

Q315) The modern synthetic theory of evolution is based on Show Answer

Q316) Discovery of which of the following in 1980 predicated the existence of RNA world during early stage in evolution? Show Answer

Q317) Each of us is part of the ongoing evolution of the species. Which of the following occurrences would have the greatest impact on the future biological evolution of the human population? Show Answer

Q318) A mutation is most likely to have a selective advantage in evolution if Show Answer

Q319) In Lederberg's replica experiment what shall be used to obtain streptomycin resistant strain? Show Answer

Q320) Some bacteria are able to grow in streptomycin containing medium due to Show Answer

Q321) Using imprints from a plate with complete medium and carrying bacterial colonies, you can select streptomycin resistant mutants and prove that such mutations do not originate as adaptation. These imprints need to be used Show Answer

Q322) Sum of all the genes in a population is called Show Answer

Q323) At a particular locus, frequency of 'A' allele is 0.6 and that of 'a' is 0.4. What would be the frequency of heterozygotes in a random mating population at equilibria? Show Answer

Q324) Genetic drift operates in Show Answer

Q325) Genetic drift/Sewell wright effect is a __________ process Show Answer

Q326) In terms of gene frequencies, founder effect result in Show Answer

Q327) The unit of natural selection is Show Answer

Q328) In natural selection Show Answer

Q329) Natural selection is sometimes described as "survival of the fittest". Which of the following most accurately measures an organism's fitness? Show Answer

Q330) In a population of frogs which would be considered the fittest? Show Answer

Q331) Which of the following is correct? Show Answer

Q332) Directional selection Show Answer

Q333) Disruptive selection Show Answer

Q334) Birds with average-sized wings survived in a severe storm more successfully than with longer or shorter wings. It illustrates Show Answer

Q335) In a population where competition between individuals is severe then the distribution is said to be Show Answer

Q336) Directional selection favours Show Answer

Q337) Adaptation of a species is its Show Answer

Q338) Adaptations Show Answer

Q339) Industrial melanism is related to Show Answer

Q340) The process of ________ and _________ generate variation and _________ produces adaptation to the environment Show Answer

Q341) The phenomenon of "Industrial melanism" demonstrates Show Answer

Q342) The change of lighter coloured variety of peppered moth, Biston betularia, to its darker variety (carbonaria) is due to Show Answer

Q343) Some organisms escape detection from enemies by resembling other organisms Show Answer

Q344) Cause of mimicry is Show Answer

Q345) The origin of species from pre-existing species is Show Answer

Q346) Which of the following must take place for speciation to occur? Show Answer

Q347) A definition of the term "Species" based on reproduction has distinct limitations, which include its being Show Answer

Q348) Species is Show Answer

Q349) Geographic and reproductive isolations are most closely associated with Show Answer

Q350) Which is basis of evolution? Show Answer

Q351) The organisms separated by geographical barriers are termed Show Answer

Q352) Which is not applicable to the Biological species concept? Show Answer

Q353) The concept of "biological species" was proposed by Show Answer

Q354) Sympatric speciation is Show Answer

Q355) Jurassic period of the mesozoic era is characterized by Show Answer

Q356) Arrange the periods of palaeozoic era in ascending order in a geographical time scale Show Answer

Q357) Presence of recessive trait is 16%. The frequency of dominant allele in population is Show Answer

Q358) The two key concepts of Darwinism Theory of Evolution are Show Answer

Q359) Change in gene structure changes the trait it represents. The theory about formation of new species with the help of such changes is Show Answer

Q360) The study of ancient life, mainly carried out by means of fossils is Show Answer

Q361) Doctrine of evolution, i.e. 'Descent with modification', is concerned with Show Answer

Q362) England in 1850s, i.e., before industrialization set in, it was observed that there were more white-winged
moths on trees than dark-winged or melanised moths.
However, in the collection carried out from the same area, but after industrialization, i.e., in 1920, there
were more dark-winged moths in the same area, i.e., the proportion was reversed
Predict the possible reason for such change Show Answer

Q363) In a given population, the …A… of occurrence of alleles of a gene is supposed to remain …B… and even
remain the same through generations. Hardy-Weinberg principle stated it using …C… equation
Choose the correct option for A, B and C to complete the given NCERT statement Show Answer

Q364) Which of the following provides most evident proof of evolution? Show Answer

Q365) Which set includes only analogous organs? Show Answer

Q366) Study of fossils is called Show Answer

Q367) Hugo de Vries’s experimental organism was Show Answer

Q368) A biologist is trying to infer how five closely related species of snakes are related to one another. She
noticed that some of the snakes have forked tongues and others do not. Which of the following would help
her to distinguish their ancestral state? Show Answer

Q369) Origin of life occurred in Show Answer

Q370) Theory of natural selection was given by Show Answer

Q371) What’s the difference between natural selection and sexual selection? Show Answer

Q372) What do homologous organs indicates? Show Answer

Q373) Proteins found in the blood of man and ape are similar. This is an example of Show Answer

Q374) According to the Neo-Darwinian theory, which of the following is responsible for the origin of new
species? Show Answer

Q375) ‘Continuity of germplasm’ theory was given by Show Answer

Q376) Select the wrong pair Show Answer

Q377) Divergent evolution gives rise to Show Answer

Q378) The greatest evolutionary change enabling the land vertebrates to be completely free from the water.
Habitat was the development of Show Answer

Q379) Which of the following is not an examples of adaptive radiation? Show Answer

Q380) Pasteur and Koch are related to Show Answer

Q381) Some persons can move their pinnae. This ability is imparted by Show Answer

Q382) Darwin judged the fitness of an individual by Show Answer

Q383) Why the genetic variation is important from an evolutionary standpoint/ Show Answer

Q384) ‘XX’ lived 100000-40000 years ago, in Europe, Asia and Africa. ‘XX’ was short stature, hairy eyebrows,
sctreating forehead and large jaws. Identify ‘XX’ Show Answer

Q385) Who discarded the theory of spontaneous generation forever? Show Answer

Q386) Saltation stands for Show Answer

Q387) Which of the following statement is true regarding the theory of natural selection? Show Answer

Q388) ′ Ontogeny Recapitulates Phylogeny' is narrated in which of the evidences for organic evolution? Show Answer

Q389) In the developmental history of mammalian heart, it is observed that it passes through a two-chambered
fish-like heart, three-chambered frog-like heart and finally four-chambered stage. To which hypothesis can
the above cited statement be approximated? Show Answer

Q390) Which of the following statements is correct? Show Answer

Q391) ‘Hot dilute soup’ was given by Show Answer

Q392) Vestigial organ in human being is Show Answer

Q393) Darwinian ‘natural selection’ of evolution was inspired by Show Answer

Q394) Evolutionary changes does not come about at the level of individual but at the level of Show Answer

Q395) Which of the following statements are wrong?
I. Thomas Malthus is well known for his book on population
II. The work of Thomas Malthus on population did not influence Darwin
III. There must be a genetic basic for getting selected and to evolve
IV. All the finches on the Galapagos islands are descended from a common ancestor
Choose the correct option Show Answer

Q396) Which of the following animal extinct recently? Show Answer

Q397) Evolutionary biology is Show Answer

Q398) Maximum cranial capacity is of Show Answer

Q399) In pleistocene epoch, the ancestor of horse is Show Answer

Q400) Which group is evolutionary modern? Show Answer

Q401) The Mesozoic era is also called as the golden age of the Show Answer

Q402) In human beings, vestigial organs are Show Answer

Q403) Which one of the following is the most primitive ancestor of man? Show Answer

Q404) First land plants (psilophyte) were originated in Show Answer

Q405) Earliest fossil ape prior to the ape man was Show Answer

Q406) Arrange the following events of modern concept of evolution sequentially
I. Genetic variations in population
II. Natural selection
III. Heredity
IV. Isolation
V. Speciation
The correct option is Show Answer

Q407) Human beings belongs to the family-Hominidae which evolved about 24 million years ago. The relative
family-Pongidae includes Show Answer

Q408) The main point of Darwin’s theory is Show Answer

Q409) Which of the set represents vestigial organs? Show Answer

Q410) Connecting link between Annelida and Mollusca is Show Answer

Q411) Which of the following examples supports Lamarckism? Show Answer

Q412) Darwin’s finches represents Show Answer

Q413) Which of the following evidences does not favour the Lamarckian concept of inheritance of acquired
characters? Show Answer

Q414) Oparin and Haldane’s theory is also called Show Answer

Q415) A microsphere is a …A… collection of organic macromolecules with double layered outer boundary. The
term microsphere was given by …B…
Complete the given statement by choosing correct options for A and B with reference to NCERT textbook Show Answer

Q416) Which is not true of Archeopteryx ? Show Answer

Q417) The sequence of origin of life could be Show Answer

Q418) Australian marsupials are the example of Show Answer

Q419) Which of the following in birds indicates their reptilian ancestry? Show Answer

Q420) Big-Bang theory attempts to explain the origin of Show Answer

Q421) Life cannot originate from inorganic materials now because of Show Answer

Q422) The first life on the earth was developed through Show Answer

Q423) Which compound has very important role in prebiotic evolution? Show Answer

Q424) Origin of life as a result of chemical evolution was properly explained by
I. Fox II. Oparin
III. Wateson IV. Haeckel
V. Mendel VI. Crick
Choose the correct option Show Answer

Q425) Name given to fossil hominid of Shivalik hills in India is Show Answer

Q426) Which of the following statements are correct?
I. Bird originated 150 million years ago
II. Mammals originated 200 million years ago
III. Multicellular organisms 1 billion years ago
The correct combination is Show Answer

Q427) Hardy-Weinberg described the frequency of …A… for an entire …B… .
Choose the correct option for A and B to complete the given NCERT statement Show Answer

Q428) The modern man differs from the apes in Show Answer

Q429) What did Miller obtained from his experiment? Show Answer

Q430) A study of fossils in different sedimentary layers indicates Show Answer

Q431) Development of similar adaptive functional structural features in an unrelated group of organism is called Show Answer

Q432) Organic evolution is also called Show Answer

Q433) The present concept of evolution is known as Show Answer

Q434) Scientist who also came to the similar conclusions around the same time of Charles Darwin was Show Answer

Q435) Giant dinosaurs and reptiles predominated during the Jurassic period. This period was also marked the
evolution of higher insects and angiosperms, conifers, cycads, etc. Jurassic period belongs to …….. era
Complete the given statement by choosing an appropriate option Show Answer

Q436) Weismann cut off tails of mice generation after generation but tails neither disappeared nor shortened
showing that Show Answer

Q437) The pioneers in the field of organic evolutions are Show Answer

Q438) In the animals, the same structures developed along the different directions due to the adaptations to
different needs. This is called Show Answer

Q439) Large size of pinnae in animals of warm region in comparison to animal of cold region is due to Show Answer

Q440) The gases condensed under …A… and formed the galaxies of the present day universe. In the solar system
of the milky way galaxy, earth was supposed to have been formed about …B… back. There was no
atmosphere …C… on the earth. Water vapour, …D… carbon dioxide and ammonia released from molten
mass covered the surface.
Choose the correct option for A, B, C and D to complete the given paragraph with reference to NCERT
textbook Show Answer

Q441) Which species of human ancestor was named lucy? Show Answer

Q442) The Neanderthal man with a brain size …A… cc lived in near …B… between …C… to …D… years back. The
correct choices for A, B, C and D are Show Answer

Q443) What kind of evidence suggested that man is more closely related with chimpanzee than with other
hominoid apes? Show Answer

Q444) The first non-cellular form of life could have originated Show Answer

Q445) The idea that the life originates from pre-existing life is referred as Show Answer

Q446) ‘Darwin natural selection theory’ could not explain Show Answer

Q447) First autotrophs on the primitive earth was/were Show Answer

Q448) According to the Darwin’s theory of evolution, differences between the species occurs due to Show Answer

Q449) A change in the relative abundance of an allele (the allelic frquency) within a population, over a succession
of generations is called Show Answer

Q450) Gradual accumulation of adaptation of changing environment leads to the origin of Show Answer

Q451) Which of the following statement is the most appropriate one in an evolutionary sense? Show Answer

Q452) Microbial experiments show that …A… advantageous …B… when selected will result in observation of new
phenotypes. Over few generations, this would result in …C… . Natural selection is a process in which …D…
variations enabling better survival are enabled to reproduce and leave greater number of progeny
Choose the correct option for A, B, C and D to complete the given NCERT statement Show Answer

Q453) The force responsible for fixing in population of neutral characteristics is Show Answer

Q454) Mutation is more common when it is present in Show Answer

Q455) Choose the correct statements
I. Law of embryonic development was given by Von Baer
II. Recapitulation theory was proposed by Haeckel
III. Haeckel theory states that ‘Ontogeny repeats phylogeny’
IV. Haeckel theory and biogenetic law were proposed by the same person
The correct combination is Show Answer

Q456) ‘Every cell of the body contributes gemmules to the germ cells and so shares in the transmission of
inherited characters’, this theory is known as Show Answer

Q457) Synthetic theory of evolution was developed by Show Answer

Q458) Natural indicator of industrial pollution is Show Answer

Q459) Lamarckism cannot explain Show Answer

Q460) What is common to whale, seal and shark? Show Answer

Q461) Give the name of the first organism who invaded land Show Answer

Q462) Hardy-Weinberg principle can be expressed as Show Answer

Q463) Speciation is the evolutionary process by which Show Answer

Q464) First human like hominid is known as Show Answer

Q465) ‘Darwin’s finches’ refers to Show Answer

Q466) Age of fossils in the past was generally determined by radio-carbon method and other methods involving radioactive elements found in the rocks. More precise methods, which were used recently and led to the revision of the evolutionary period for different groups of organisms, include Show Answer

Q467) Which of the following is not vestigial in man? Show Answer

Q468) Survival of the fittest is possible due to Show Answer

Q469) Which of the following branch of biology helps in to know the existence of coal? Show Answer

Q470) Which of the following factor is most likely to decrease the genetic diversity in a population? Show Answer

Q471) The first cellular form of life could have originated Show Answer

Q472) Origin of life as a result of chemical evolution has been properly explained by or the most logical
biochemical theory of origin of life has been given by Show Answer

Q473) The structural similarities between the flippers of whales and the arms of human are used to show that Show Answer

Q474) Fossil X is older than fossil Y if Show Answer

Q475) I. Oparin’s theory of origin of life is based on …A…
II. Chemical theory of origin of life was given by …B…
Choose the correct option for A and B to complete the statements I and II Show Answer

Q476) The concept of natural selection in evolution was proposed by Show Answer

Q477) Which of the following is not a correct pair? Show Answer

Q478) S L Miller’s closed flask contained Show Answer

Q479) The primate, which existed 15 million years ago, among these was Show Answer

Q480) Which type of growth living organism undergoes? Show Answer

Q481) What was the most significant trend in the evolution of modern man (Homo sapiens) from his ancestors? Show Answer

Q482) For a long time it was believed that life came out of decaying and rotting matter like straw mud, etc.
This was the theory of Show Answer

Q483) In which of the following era first mammal like reptile originated? Show Answer

Q484) In the theory of evolution, Lamarck explained
I. internal vital force
II. effect of environment on organisms
III. inheritance of acquired characters
IV. use and disuse of organs
Choose the correct combination Show Answer

Q485) Evolutionary development of a species can be studied by Show Answer

Q486) Phenomenon of industrial melanism demonstrates Show Answer

Q487) Darwin’s book ‘Origin of New Species by Natural Selection’ was published in Show Answer

Q488) What is the difference between genetic drift and changes drift to the natural selection? Show Answer

Q489) Homo sapiens were arose during Show Answer

Q490) Which phenomena confined the pouched mammals of Australia survived because of lack of competition
from any other mammals? Show Answer

Q491) Which of the following animals is not only a living fossil but also considered as connecting link? Show Answer

Q492) Fossils of Homo erectus was found in Show Answer

Q493) Which of the following is a unit of natural selection? Show Answer

Q494) Industrial melanism is an example of Show Answer

Q495) Stanley Miller proposed origin of life by Show Answer

Q496) Anthropoids were evolved into Show Answer

Q497) Hardy –Weinberg equilibrium is known to be affected by gene flow, genetic drift, mutation, genetic
recombination and Show Answer

Q498) Struggle for existence and survival of the fittest theories were given by Show Answer

Q499) Theory of continuity of germplasm was given by Show Answer

Q500) The process by which different type of finches were evolved in Galapagos islands is Show Answer

Q501) An evolutionary process, giving rise to new species adapting to new habitat and ways of life is called Show Answer

Q502) Natural selection is a process in which …A… variations enables better survival and ability to …B… and
leave …C… number of progeny
Choose the correct options for A, B and C to complete the given NCERT statement Show Answer

Q503) Which of the follows have not left any evidence of organic evolution? Show Answer

Q504) Biological concept of species was given by Show Answer

Q505) Somatic cells of gorilla, chimpanzee and orangutan have Show Answer

Q506) Natural selection
I. tends to increase its characters that enhances survival and reproduction
II. causes adaptation
III. acts on organism phenotype
IV. mechanism of evolution explained by Darwin
Which of the following statements are correct? Show Answer

Q507) Darwinian fitness can be estimated by Show Answer

Q508) The first life on earth consists of Show Answer

Q509) Factor affecting the process of speciation are
I. Mutation
II. Recombination
III. Natural selection
IV. Hybridisation
V. Genetic drift
VI. Polyploid
VII. Isolation
Choose the correct combination Show Answer

Q510) Blood groups-A and B are found in Show Answer

Q511) An organism which is the connecting link between the animals and plants is Show Answer

Q512) ……… organs shows adaptive radiation.
Complete the given statement with an appropriate option given below Show Answer

Q513) Identify the phenomenon in which a new set of population is formed the set of existing population due to
the excessive change in the allele frequency Show Answer

Q514) Age of gymnosperm is Show Answer

Q515) Which of the following example of variation is not important from an evolutionary standpoint? Show Answer

Q516) Organs which are anatomically different, but performs similar functions are called Show Answer

Q517) Coacervates are Show Answer

Q518) The primates nearest to humans in the evolutionary line is Show Answer

Q519) Primitive man was originated during Show Answer

Q520) Survival of the fittest is the basic principle of a competition. Its importance in organic evolution was
explained by Show Answer

Q521) Which of the following is an example of an ancestral homology? Show Answer

Q522) Swan-necked flask experiment proved Show Answer

Q523) Industrial melanism was highlighted by Show Answer

Q524) de Vries gave his mutation theory on organic evolution, while working on Show Answer

Q525) Which of the following statement is correct regarding the evolution of humans?
I. The skull of adult chimpanzee is more like adult human skull than baby chimpanzee skull
II. The skull of baby chimpanzee is more like adult human than adult chimpanzee skull
III. Dryopithecus is oldest human like fossil
IV. Dryopithecus found in Miocene rock of Africa and Europe
The correct option is Show Answer

Q526) Select the correct statement from the given options Show Answer

Q527) Human arm is homologous to Show Answer

Q528) Lamarck’s theory of evolution is also known as Show Answer

Q529) Which fossil man has been known from Shivalik hills in India? Show Answer

Q530) The crosspterygian fish ′Latimaria ′ is considered as the ancestor of terrestrial tetrapods. During which
period these fishes evolved into Amphibians? Show Answer

Q531) Australopithecus is also called Show Answer

Q532) According to de Vries theory, evolution is Show Answer

Q533) Which is a unit of evolution? Show Answer

Q534) Primates which existed about 15 million years ago were
I. Dryopithecus
II. Homo habilis
III. Ramapithecus
IV. Australopithecus
V. Homo erectus
VI. Neanderthal man
Choose the correct option Show Answer

Q535) The Coenozoic era is often designated as Show Answer

Q536) When and who wrote the book. The origin of species ? Show Answer

Q537) Spontaneous generation theory was given by Show Answer

Q538) What is the relationship between the wing of a bird and the wing of a bat? Show Answer

Q539) Homo erectus lived about Show Answer

Q540) The concept of chemical evolution is based on Show Answer

Q541) The stage next to Homo habilis was Show Answer

Q542) What was the name of the sail ship used by Charles Darwin during the sea Voyage? Show Answer

Q543) In which era, life was absent? Show Answer

Q544) The first cell like structure was appeared in Show Answer

Q545) Synthesis of amino acids to prove that amino acids were formed in primitive ocean was experimentally
proved by Show Answer

Q546) Separate the following into homologous and analogous organs
I. Sweet potato
II. Potato
III. Filippers of penguins and dolphins
IV. Hearts of different vertebrate
V. Forelimbs of whales, bat and cheetah
The correct option is
Show Answer

Q547) Echidna and Ornithorhynchus are the connecting links between Show Answer

Q548) Which one of the following is incorrect about the characteristics of protobionts (coacervates and
microspheres) as envisaged in the abiogenic origin of life? Show Answer

Q549) Find out wrong statement about Homo habilis
I. Also called able or skilful man
II. Also called tool marker
III. Fossil discovered from fast Africa
IV. 500 cc
V. Have teeth likes modern man
VI. Lined 2 million years ago
The correct choice is Show Answer

Q550) I. Random selection
II. Convergent evolution
III. Genetic drift
IV. Divergent evolution
Choose the correct option for Sewell’s effect from above option Show Answer

Q551) Information molecule to get evolved first on the primitive earth was Show Answer

Q552) The first mammals were like …A… . Their fossils are small sized. Mammals were …B… and protected their unborn young inside the mother’s body
Choose the correct option for A and B to complete the given NCERT statement Show Answer

Q553) Ontogeny recapitulates phylogeny, this theory is called as Show Answer

Q554) Present concept of evolution is the result of the work by number of scientists
I. T Dobzhansky II. RA Fisher
III. JBS Haldane IV. Charles Darwin
V. Sewall Wright VI. Ernst Mayer
VII. Hugo de Vries VIII. GL Stebbins IX. Lamarck
The scientists who contributed to the present concept of evolution are Show Answer

Q555) What is the supportive evidence for evolution from comparative embryology? Show Answer

Q556) Homo erectus had large brain around …A… cc. Homo erectus was probably …B… . Here A and B refers to Show Answer

Q557) In plants like Acacia , the leaves are compound but their seedlings possess simple leaves. This
phenomenon can be explained by Show Answer

Q558) Australopithecus has been given the nick name Lucy by Show Answer

Q559) Which of the following is not an example of evolutionary change? Show Answer

Q560) Darwin travelled in which of the following ship? Show Answer

Q561) Flippers of seal are Show Answer

Q562) The cranial capacity of Peking man was about Show Answer

Q563) Resistant varieties evolved in much lesser time because of Show Answer

Q564) Which of the following features are true for stabilizing type of natural selection? Show Answer

Q565) Homologous organs indicate the Show Answer

Q566) Evolutionary convergence is the development of Show Answer

Q567) Which of the following is a pair of analogous organs? Show Answer

Q568) First evidence of ceremonial burial of dead body and belief in religion have been found with fossil of Show Answer

Q569) Which of the given pairs are correct
I. Wings of insects and birds are homologous organ
II. Wings of bats and bird are homologous organ
III. Wings of insect and bats are analogous
IV. Wings of insect and bird are analogous
Choose the correct option Show Answer

Q570) In a random mating population in equilibrium, which of the following brings about a change in gene
frequency in non-directional manner? Show Answer

Q571) The theory of pangenesis was rejected due to the acceptance of Show Answer

Q572) There was no life in Show Answer

Q573) Why is the advent of reproductive isolation is important from an evolutionary standpoint Show Answer

Q574) There are two opposing views about origin of Modern man. According to one view, Homo erectus in Asia
were the ancestors of modern man. A study of variations of DNA however suggested African origin of
modern man. What kind of observation on DNA variation could suggest this? Show Answer

Q575) A population containing a gene ‘X’ with two alleles ‘Aa’ is in Hardy-Weinberg equilibrium for gene ‘X’. If the
gene frequency of allele ‘A’ is 0.2, allele frequency of ‘a’ is Show Answer

Q576) Which of the following are the correct pair of homologous organs?
I. Hands of man and wings of bat
II. Wings of bat and wings of cockroach
III. Wings of bird and wings of butterfly
IV. Fins of fish and forelimbs of horse
V. Forearm of human and forelimbs of horse
The correct combination is visible in option Show Answer

Q577) Which of the following presumably possesses a cranial capacity larger than modern man? Show Answer

Q578) Hardy-Weinberg principle is the Show Answer

Q579) Which of the following statement is correct? Show Answer

Q580) Genetic drift in also known as Show Answer

Q581) Which of the following is the first vascular plant to be represented by an extinct group? Show Answer

Q582) Choose the wrong statements
I. The essence of Darwinian theory about evolution can be seen in the phenomenon of natural selection
II. The rate of appearance of new forms is not linked to the evolution
III. Adaptive ability is a complete evolution
IV. Mutations are random and directionless
The correct option is Show Answer

Q583) Connecting links are organism which shows characters of Show Answer

Q584) The ratio of methane, ammonia and hydrogen in Stanley Miller’s experiment was Show Answer

Q585) Proteinoids are Show Answer

Q586) Random genetic drift in a population probably results from Show Answer

Q587) Organs differ in origin but performing similar function Show Answer

Q588) Homo sapiens were arose in Show Answer

Q589) ‘PP’ is a type of selection that favours both small sized and large-sized individual. ‘PP’ eliminates most of
the members with mean expression, so as to produce two peak in the distribution of the tract that many
lead to the development of two different populations. Identify ‘PP’ Show Answer

Q590) Formation of simple and less elaborated forms from the more complex and specialized one is called Show Answer

Q591) Natural selection means Show Answer

Q592) Which of the following statements are correct?
I. Directional selection favours one extreme form over the other extreme and over intermediate forms of a
trait
II. Stabilising selection favours the intermediate forms of a trait
III. Disruptive selection favours both the extreme forms of a trait
IV. Fossils are the remnents of hard parts of life forms present in rocks
V. A study of fossils in different sedimentary layers indicates the geological period in which they live
VI. Radio isotopes are often used to determine the age of the fossils
VII. Study of fossils is called Palaeontology
VIII. Most fossils are found in sedimentary rocks
IX. The unit of evolution is population Show Answer

Q593) Which one of the following features occurs in the direction of the evolution for human species? Show Answer

Q594) The theory of random genetic drift was proposed by Show Answer

Q595) How old is our universe? Show Answer

Q596) Which of the following defines Hardy –Weinberg law? Show Answer

Q597) Correct order of evolutionary scale is Show Answer

Q598) The concept of inheritance of acquired character in support of evolution was proposed by Show Answer

Q599) Which one of the following are homologous organs? Show Answer

Q600) Fossilized faecal material of animals are known as Show Answer

Q601) Identify the phenomenon in which the members of a species do not interbreed with the members of other
species or same species Show Answer

Q602) I. Use and disuse of organs
II. Inheritance of acquired characters
III. Branching descent
IV. Natural selection
V. Mutation
VI. Reproductive isolation
The two key concepts of Darwinism from the given options are Show Answer

Q603) Related species which are reproductively isolated but mophologically similar are called Show Answer

Q604) Evolution is Show Answer

Q605) The result of Miller’s experiments were discussed in the book ‘The Planets’ written by Show Answer

Q606) Which of the following experiment suggested that simplest living organisms could not have originated
spontaneously from non-living matter? Show Answer

Q607) Darwin asserted that …A… which are heritable and which makes the resources utilization …B… for few,
will enable only those to reproduce and leave …C… progeny
Choose the correct option for A, B and C to complete the given statement Show Answer

Q608) Phenomenon in which the genetic drift gives rise to a new sample of population is called Show Answer

Q609) Genetic drift operates to Show Answer

Q610) Archaeopteryx is a connecting link between Show Answer

Q611) Which one of the following is not a vestigial structure in Homo sapiens? Show Answer

Q612) Which of the following was not explained by the Darwinism? Show Answer

Q613) Creation of new taxa is focussed in Show Answer

Q614) Lung fishes, air breathing animals and corals predominated during the ….. period
Complete the given statement by choosing an appropriate option Show Answer

Q615) Development of different functional structures from a common ancestral form is called Show Answer

Q616) Hand of man, wing of bat and flipper of seal represents Show Answer

Q617) Who wrote the famous book Origin of Species? Show Answer

Q618) According to the heterotroph hypothesis, the first life on the earth was able to Show Answer

Q619) Which of the following events is an examples of evolution? Show Answer

Q620) The theory that evolutionary change is slow and continuous this phenomenon is known as Show Answer

Q621) Links between organisms that shows branching pattern of evolutionary relationships are shown by Show Answer

Q622) Which of the following is not Darwin’s conclusion? Show Answer

Q623) Which group of organisms is believed to be evolved first on earth? Show Answer

Q624) Artificial synthesis of ATP, porphyrin and nucleotides was detained by Show Answer

Q625) The biochemical analysis of different chlorophyll pigments in plants would be most useful in determining Show Answer

Q626) Select the wrong statements
I. Swank-neck flask experiment was performed by Louis Pasteur
II. Louis Pasteur is famous for germ theory of disease
III. Louis Pasteur disapproved spontaneous theory forever
IV. Cosmozoic theory of origin of life was proposed by Richter
V. Theory of catastrophism was given by Georges Cuvier
Choose the correct option Show Answer

Q627) Percentage of homology in the haemoglobin of man and gorilla is Show Answer

Q628) Hybridized sterile (2n) plant can be converted into a fertile species by doubling the chromosomes through
induced polyploidy. Such plants are called Show Answer

Q629) Abiogenesis means Show Answer

Q630) Pouched marsupials are found only in Show Answer

Q631) Evolution is not continuous. It is a Jerky and a discontinuous process. This is the punch line of Show Answer

Q632) Which of the following statements are correct?
I. Survival of the fittest is based upon the characteristics that are inherited
II. Darwin’s variations are small and directional
III. The fitness is the end result of the ability of adults
IV. Genetic drift is operated in small population
V. Genetic drift operates in large population
VI. Genetic drift upset the Hardy-Weinberg equilibrium
Choose the correct option Show Answer

Q633) If frequency, of ‘A’ allele is 0.4 than, find out the frequency of ‘B’ allele and heterozygous genotype in a
random mating population at equilibria Show Answer

Q634) Darwin differentiate …A… species of finches and grouped them into …B… main types.
Choose the correct option for A and B to complete the given statement Show Answer

Q635) When a species gets separated geographically, it evolves separately. Which of the following condition
would determine whether they are now different species?
I. They failed to interbreed
II. They failed to give fertile offspring
III. They have different coloured body
IV. They appear morphologically slightly different
Choose the correct combination from given options Show Answer

Q636) First cell produced on earth is Show Answer

Q637) Biochemical similarities indicates the Show Answer

Q638) Who proposed the Big-Bang theory? Show Answer

Q639) Fossil man, who made cave paintings, is Show Answer

Q640) What is meant by the term “Darwin fitness” Show Answer

Q641) Primary source of allelic variation is Show Answer

Q642) All organism shares the same types of proteins and biochemical pathways. This supports the fact that Show Answer

Q643) Orithorhynchus is a connecting link between Show Answer

Q644) Analogous organs appears as the result of Show Answer

Q645) Who proposed that the first form of life could have come from pre-existing non-living organic molecules? Show Answer

Q646) The scientific name of Java man is Show Answer

Q647) Example of convergent evolution is Show Answer

Q648) Which theory arguments that life on earth came from outer space? Show Answer

Q649) Which of the following is the most primitive ancestor of man? Show Answer

Q650) Presence of visceral pouches in the embryos of all vertebrates supports the theory of Show Answer

Q651) A population exhibiting Hardy-Weinberg equilibrium possesses 25% recessive traits. Find out the
frequency of recessive alleles in the gene pool of the same population Show Answer

Q652) Which of the following natural process is likely to fasten organic evolution? Show Answer

Q653) Homo sapiens neanderthalensis and Homo sapiens sapiens (Cro-magnon man), were originated from Show Answer

Q654) How might an evolutionary biologist why a species of salamander becomes blind after colonizing a cave? Show Answer

Q655) Which one amoung the following is an example for homology? Show Answer

Q656) Coacervates belong to category of Show Answer

Q657) Which of the following sequences was proposed by Darwin and Wallace for organic evolution? Show Answer

Q658) Fossils are useful in Show Answer

Q659) Biological concept of species is mainly based on Show Answer

Q660) Which of the following statements stands in favour of abiogenesis?
I. Spontaneous generation
II. Origin of viruses and microbes
III. Origin of life from living organism
IV. Origin of life from non-living organism
The correct combination is Show Answer

Q661) The brain capacity of Homo erectus was about Show Answer

Q662) Single step large mutation leading to speciation is also called Show Answer

Q663) According to Oparin, which one of the following was not present in the primitive atmosphere of the earth? Show Answer

Q664) What is the use of Electronic Spin Resonance (ESR) in fossil studies? Show Answer

Q665) Wings of birds and wings of flies perform similar functions so they are examples of Show Answer

Q666) Vestigial organs present in an adult individual are examples of …………. Basis of evidence of evolution. Show Answer

Q667) Evolution that shift the allele frequency in a study consistent direction is called? Show Answer

Q668) Bird with average sized wings survived in the severe strom but the short winged birds died. It shows Show Answer

Q669) Cosmozoic theory was proposed by Show Answer

Q670) Major radiations of mammals, birds and pollinating insects took place in which epoch? Show Answer

Q671) Change of frequency of alleles in a population results in evolution. This statement is proposed in Show Answer

Q672) The first enzyme on the primitive earth was/were Show Answer

Q673) Ancestor of man, who first stood erect, was Show Answer

Q674) Theory of special creation arguments that
I. all living organisms were created as such
II. the diversity was always the same since creation
III. earth is 4000 years old
Choose the right option to complete the given statement Show Answer

Q675) ‘Use and disuse’ theory was proposed by Show Answer

Q676) What kind of variation contributes to the height of animals? Show Answer

Q677) The most recent and direct prehistoric ancestor is Show Answer

Q678) Evolution for Darwin was gradual, while de Vries believed that mutations, caused speciation. The belief of
de Vries supports the concept of Show Answer

Q679) Study of origin and development of humans in all their physical, social and cultural relationship is called Show Answer

Q680) Which of the following best shown the common origin of man and chimpanzee? Show Answer

Q681) Neo-geographic speciation can be found in Show Answer

Q682) Which of the following statement are correct about Homo erectus
I. Had a large brain around 900cc
II. Appeared about 1.5 million years ago
III. Ate meat/omnivorous
IV. Evolved from Homo habilis
Choose the correct option Show Answer

Q683) Evolution is Show Answer

Q684) Which of the following is an example of fossils? Show Answer

Q685) Rapid evolution a number of new taxa in a short span of time due to large scale of environmental change is
called Show Answer

Q686) Which of the following statement describes that natural selection is not analogous to artificial selection Show Answer

Q687) Select the incorrect statements
I. Natural selection is essential for evolution
II. Natural selection do not include variations
III. Concept of natural selection was given by Hugo de Vries
IV. Mutation is the sudden inheritable change
V. Synthetic theory is also called Neo-Darwinism theory of evolution
The correct combination is a Show Answer

Q688) Cro –magnon was Show Answer

Q689) Urey –Miller’s experiment mixture had the following except Show Answer

Q690) Life appeared Show Answer

Q691) Evidence that evolution of life forms has indeed taken place on earth has come from Show Answer

Q692) Darwin in his ‘natural selection theory’, did not believed in any role of which one of the following in
organic evolution? Show Answer

Q693) The first living beings were Show Answer

Q694) Offsprings formed by the combination of new characters are called Show Answer

Q695) Evolution is the Show Answer

Q696) The most recent era in geological time scale is Show Answer

Q697) Change of lighter coloured variety of peppered moths (Biston betularia ) to darker variety occurred due
to Show Answer

Q698) Two key concepts of Darwinian theory of evolution are
I. branching descent
II. use and disuse of organs
III. natural selection
IV. somatic variance
The correct combination is Show Answer

Q699) Origin of different types of beaks occur due to Show Answer

Q700) The early man whose skeleton is almost indistinguishable from that of modern man is Show Answer

Q701) Coacervates were experimentally produced by Show Answer

Q702) Which of the following evolved first on the primitive earth? Show Answer

Q703) Given below some major events in the early history of life
I. First heterotrophic prokaryotes
II. First eukaryotes
III. First autotrophic prokaryotes
IV. First animals
Choose the correct sequence of these evolutionary events Show Answer

Q704) First dinosaurs and first egg-laying mammals were originated in Show Answer

Q705) Philosophie Zoologique was written by Show Answer

Q706) Mark the correct statements
I. Fitness of individuals means reproductive fitness
II. Homology in vertebrae brain indicates common ancestry
III. Theory of acquired character was given by de Vries
IV. After industrialization, the white moth did not survive due to predators
The correct option is Show Answer

Q707) Genetic basis of adaptation was performed by Show Answer

Q708) In which epoch, only modern humans prevails? Show Answer

Q709) Select the examples which favours the mutational theory of evolution
I. Ancon sheep II. Hornless cattle
III. Cicer gigas IV. Novel oranges
V. Hairless cat VI. Double toed cat
The correct combination is Show Answer

Q710) Although all mammals have some common characters, but they shows conspicuous differences due to Show Answer

Q711) A good example for recapitulation theory is Show Answer

Q712) Atavism is Show Answer

Q713) The best description of natural selection is Show Answer

Q714) Which one of the following amino acid was not found to be synthesized in Miller’s experiment? Show Answer

Q715) Evolution occurs when Show Answer

Q716) Myrmecobius Myrmecophaga are closely related and have similar adapatations for the same habitat.This phenomenon is Show Answer

Q717) Galapagos islands are located in Show Answer

Q718) Lamarck’s concept of inheritance of acquired characters was discarded by
I. Mendel’s laws of inheritance
II. Theory of natural selection
III. Mutational theory
IV. Theory of continuity of germplasm
Choose the correct combination of the given options to complete the given statement Show Answer

Q719) The finches of Galapagos islands provide an evidence in favour of Show Answer

Q720) …A… of Russia and …B…. of England proposed that the first form of life could have come from …C… nonliving
organic molecule
Choose the right option for A, B and C to compete the given NCERT statement Show Answer

Q721) Phrase ‘Survival of the Fittest’ was used by Show Answer

Q722) The cranial capacity of modern man is Show Answer

Q723) Which of the following molecules falls under the category of eobionts?
I. Coacervates II. Microspheres Show Answer

Q724) A baby has been born with a small tail. It is the case of exihibiting Show Answer

Q725) Which of the following is an evidence for Darwin’s theory of common descent? Show Answer

Q726) Which one of the following describes correctly the homologous structures? Show Answer

Q727) Scientific name of Solo man is Show Answer

Q728) Genetic equilibrium refers to phenomenon that Show Answer

Q729) Arrange the following events in a sequential order to describe the phenomenon of speciation
I. Over production rapid multiplication
II. Limited food and space
III. Struggle for existence
IV. Speciation
V. Inheritance of useful variation
VI. Natural selection/survival of the fittest
VII. Appearance of variation
The correct sequence is Show Answer

Q730) The sequence of events in geographic speciation is most likely to be Show Answer

Q731) What was the Lamarck’s explanation for long necked giraffes? Show Answer

Q732) The highest cranial capacity is/was present in Show Answer

Q733) Identify the correct sequence of stages in evolution of modern man/ Homo sapiens. Show Answer

Q734) Trilobites were evolved during which of the following periods? Show Answer

Q735) Darwin’s finches provide an excellent evidence in favour of organic evolution. These are related to which
of the following evidences? Show Answer

Q736) Mendel described the frequency of …A… for offsprings of a single …B…
Choose the correct options for A and B to complete the given NCERT statement Show Answer

Q737) All organisms shares the same genetic code. This commonality is an evidence that Show Answer

Q738) Homology refer to
I. Divergent evolution
II. Common descent
III. Convergent evolution
Choose the correct option Show Answer

Q739) Comparative anatomy and morphology shows …A… and …B… among organisms of today and those that
existed years ago. Such similarities can be interpreted to understand whether …C… ancestors were shared
or not
Choose the correct option for A, B and C the complete the given NCERT statement Show Answer

Q740) Homo erectus evolved about 1.7 million years ago. They used fire and tools and also used animal hides as
clothing. The fossil of Homo erectus were named as Show Answer

Q741) Thorns of Bougainvillea and tendrils of Cucurbita are examples of Show Answer

Q742) First mammal occurred in which era/period? Show Answer

Q743) Theory of spontaneous generation or abiogenesis was first disproved by Show Answer

Q744) Modern synthetic theory is based on Show Answer

Q745) Which of the following situation would most likely result in the highest rate of natural selection? Show Answer

Q746) Which one is the largest ape among the given four genera of apes? Show Answer

Q747) When two species of different genealogy come to resemble each other as a result of adaptation, the
phenomenon is termed as Show Answer

Q748) Which one of the following phenomenon supports Darwin’s concept of natural selection in organic
evolution? Show Answer

Q749) Who first conducted experiment on evolution to prove biochemical origin of life? Show Answer

Q750) In Africa, there is a species of bird called the yellow-throated long claw. It looks exactly like the
meadowlark found in North America, but they are not closely related. This is an example of Show Answer

Q751) Theory of pangenesis was given by Show Answer

Q752) Krebs’ cycle, glycolysis, lipogenesis, enzymes, all of these indicates Show Answer

Q753) Peripatus is a connecting link between Show Answer

Q754) In Hardy-Weinberg law the homozygous dominant alleles, homozygous recessive alleles and heterozygous
alleles are represented by
Show Answer

Q755) During the course of human evolution which part of the brain has shown maximum increase in size? Show Answer

Q756) Miller synthesized simple amino acids from one of the following mixtures in his experiment Show Answer

Q757) From one population to other, the new mutation spreads by
I. Bottle neck effect II. Budding
III. Immigrants IV. Sexual reproduction
V. Binary fission VI. Asexual reproduction
Choose the correct combination Show Answer

Q758) Factor affecting the Hardy-Weinberg principles are
I. gene flow
II. genetic drift
III. mutation
IV. genetic recombination
V. natural selection
The correct combination is Show Answer

Q759) First theory of evolution was given by Show Answer

Q760) The idea of natural selection as the fundamental process of evolutionary changes was reached Show Answer

Q761) Mutation results in Show Answer

Q762) Plants of the Galapagos islands show resemblance most closely to the plants of Show Answer

Q763) According to abiogenesis, life originated from Show Answer

Q764) Formation of more complex and specialized organisms from the simple and less elaborated forms is called Show Answer

Q765) Anthropogenic actions that leads to evolution is the use of Show Answer

Q766) Which one is linked to evolution? Show Answer

Q767) First seed plant appeared during which period? Show Answer

Q768) Organic compounds first evolved in earth required for origin of life were Show Answer

Q769) The study of the homologous structures in mature organisms provides the evidence for the evolutionary
relationships among certain groups of organisms. Which field of the study includes this evidence of
evolution? Show Answer

Q770) Which of the following statements are incorrect?
I. Microbial experiment shows that when the pre-existing advantagoeus mutations are selected they will
result in the observation of new phenotypes. Over few generations, this would results in speciation
II. Neanderthal fossils represents a human relative.
III. In 1938, a fish caught in South Africa happened to be a coelacanth (lobe fins) which was thought to be
extinct. These animals evolved into the first living amphibian on both land and water
IV. Lichens can be used as water pollution indicators
V. Alfred Wallace, a naturalist, who worked in Malay Archepalago (present Indonesia) had also came to the
similar conclusion on natural selection as reached by Darwinism
The correct option is Show Answer

Q771) Which of the following was formed in S Miller’s experiment? Show Answer

Q772) Which of the following is not the concept of Lamarck? Show Answer

Q773) Which of the following features are bconnected with the modern theory of Evolution?
I. Genetic and Chromosomal mutation
II. Genetic recombination and natural selection
III. Reproductive Isolation
The correct combination is Show Answer

Q774) Which era is called the age of angiosperm? Show Answer

Q775) Dryopithecus is also called as Show Answer

Q776) Darwin's finches are a good example of Show Answer

Q777) The animal called ........... evolved into the first amphibians that lived on both land and water. Complete the given statement by choosing an appropriate answer Show Answer

Q778) True statements regarding the genetic drift are
I. It mostly occurs in smaller population
II. Certain alleles can be lost forever because of genetic drift
III. Founder effects and bottle neck effects are caused by genetic drift
IV. Mutations are primarly responsible for genetic drift
The correct combination showing true statement is Show Answer

Q779) Which of the following is an atavistic character?
I. Body hairs
II. Enlarged canines
III. Presence of six fingers
IV. Presence of tail in some babies
The correct combination is Show Answer

Q780) 'Population tends to increase geometrically, while the food supply increases arithmatically'.
This concept was put forward by Show Answer

Q781) Which of the following phenomenon is difficult to explain in terms of natural selection? Show Answer

Q782) In Hardy-Weinberg principle expression of allele frequency is represented by Show Answer

Q783) Experimental evidence of chemical evolution was given by Show Answer

Q784) Sum total of all the allelic frequency is Show Answer

Q785) Fossil of cro-magnon man was found in Show Answer

Q786) In which era Protozoa, sponge and algae were originated? Show Answer

Q787) Which one of the following aspect of evolution is shown by Darwin finches? Show Answer

Q788) Fitness according to Darwin refers to Show Answer

Q789) The concept of adaptive radiation was developed by Show Answer

Q790) Eye of Octopus and mammals appears quite similar. They are Show Answer

Q791) Which of the following is the vestigial organ in human beings? Show Answer

Q792) How Australopithecus skull differs from the skull of modern man? Show Answer

Q793) How might an evolutionary biologist explains why a species of birds has evolved a larger beak size? Show Answer

Q794) Which was absent in the atmosphere at the time of origin of life? Show Answer

Q795) Atavism is found in Show Answer

Q796) Which of the following are the wrong statements
I. Organs which are different in basic structure and origin but performs similar functions are called
analogous organ
II. Organs with different to basic structure and origin but perform similar functions are called homologous
organs
III. Homologous organs lead to convergent evolution
IV. Analogous organ leads to divergent evolution
The correct combination is Show Answer

Q797) Two nucleotide sequences found in two different species are exactly the same. This suggests that these
species Show Answer

Q798) The variation in the natural selection is on, it is due to the random mutations. What does this imply about
the natural selection? Show Answer

Q799) Which of the following statements regarding the evolution of plants and animals is/are correct?
I. Amphibians evolved into reptiles
II. Fish with stout and strong fins could move on land and go back to water. This was about 350 million
years ago
III. Giants ferns fell to form wall deposits slowly
IV. About 65 million years ago dinosaurs died out
V. Archeopteryx is the connection link between birds and reptiles
The correct combination is Show Answer

Q800) Which of the following statements correctly defines the phenomenon of genetic drift?
I. Random change in gene allele frequency
II. Occur by chance
III. It is directional
IV. Causes elimination of certain alleles
V. Causes fixation of alleles
The correct combination is Show Answer

Q801) Hugo de Vries based on his work on …A… brought forth the idea of …B…, large difference arising suddenly
in a population. He believed that it is mutation which causes evolution and not the …C… that Darwin talked
about. Mutations are random and …D…, while Darwinian variations are small and …E…
Choose the correct option for A, B, C, D and E to complete the given statement Show Answer

Q802) Tendrils in plants are an example of Show Answer

Q803) Australopithecus africanus is also known as Show Answer

Q804) The natural selection that acts against change in the form and keeps the population constant through the
time is Show Answer

Q805) ‘A brief reduction in size of a population, due to natural calamities, usually leads to random genetic drift’.
For this statement, identify the correct example from the following. Show Answer

Q806) Prehistoric cave art developed about …A… years ago. Agriculture came around …B… years back and
human settlements started. Choose an appropriate option for A and B to complete the given NCERT
statement Show Answer

Q807) Amoug the human ancestors, the brain size was more than 1000 cc in Show Answer

Q808) In the origin of life, microspheres are most primitive protobiont, which have a membrane of Show Answer

Q809) Neo- Darwinism is Show Answer

Q810) The abiogenesis occurred about how many billion years ago? Show Answer

Q811) Australopithecus existed in Show Answer

Q812) Which of the following statement is correct about Australopithecus Show Answer

Q813) Which of the following factor would affect the future population? Show Answer

Q814) Which of the following variations are temporary and have nothing to do with the last or next generation? Show Answer

Q815) Evolution convergence is characterized by Show Answer

Q816) Mutation introduces new genes into a species and brings about the changes in Show Answer

Q817) The concept that the species have changed over a long period of time is know as Show Answer

Q818) Fossils are the remains of Show Answer

Q819) Which of the following is not a living fossil? Show Answer

Q820) Homo habilis originated in Show Answer

Q821) In recent years, DNA sequences (nucleotide sequences) of mtDNA and Y-chromosomes were considered
for the study of human evolution, because Show Answer

Q822) Earth originated approximately Show Answer

Q823) Gene flow takes flow by Show Answer

Q824) The diversity in the type of finches and adaptation to different feeding habits on the Galapagos islands, as
observed by Darwin, provides an evidence of Show Answer

Q825) Which of the following is/are the most significant trend in the evolution of humans?
I. Shortning of eye
II. Bionocular vision
III. Tool making
IV. Increased cranial capacity Show Answer

Q826) Choose the homologous organs from the given options
I. Vertebrate hearts
II. Vertebrate brains
III. Thorn and tendrils of Bougainvillea and Cucurbita
IV. Vertebrate limbs
The correct combination is Show Answer

Q827) Evolution is Show Answer

Q828) Hardy –Weinberg principle explains Show Answer

Q829) Which of the following fossil man is named as handy man? Show Answer

Q830) Which of the following is an example of vestigial structure? Show Answer

Q831) Connecting link between ape and man is Show Answer

Q832) The theory of use and disuse of organ was proposed by Show Answer

Q833) The difference between Homo sapiens and the Homo erectus was Show Answer

Q834) Mutational theory of evolution was given by Show Answer

Q835) All the existing life forms share …A… and share …B… ancestors. The geological history of earth closely
correlates with …C… history of earth.
Choose the right option for A, B and C to complete the given statement with reference to NCERT text book Show Answer

Q836) Natural selection can lead to …A… in which more individuals acquire mean character value, …B…. more in
which individuals acquire value other than the mean character value and …C… in which more individuals
acquire peripheral character value at both ends of the distribution curve
Choose the correct options for A, B and C to complete the given statement with reference to NCERT text
book Show Answer

Q837) Malay Archipalago stands for Show Answer

Q838) First life on the earth originated from non-living matters has been explained by Show Answer

Q839) The age of fossils or dating of fossils can be best estimated by Show Answer

Q840) Wings of insects and birds are Show Answer

Q841) Dinosaurs were abundant during Show Answer

Q842) How did George Cuvier accounts for the extinctions in nature Show Answer

Q843) Genetic equilibrium means Show Answer

Q844) According to fossils discovered upto present time origin and evolution of man was started from which
country? Show Answer

Q845) What is the basis of Hugo de Vries theory of mutation? Show Answer

Q846) Variations in a progeny takes place due to Show Answer

Q847) Which of the following sets contain only homologous organs? Show Answer

Q848) ‘XX’ is a type of selection process in evolution ‘XX’ promotes the population changes in one particular
direction ‘XX’ favours small or large sized individuals, mean size of population changes in ‘XX’. Identify ‘XX’ Show Answer

Q849) Darwin proposed the theory of Show Answer

Q850) A population is in Hardy-Weinberg equilibrium for a gene with only two alleles. If the gene frequency of an
allele’A’ is 0.7, genotype frequency of ‘a’ is Show Answer

Q851) Genus Homo erectus includes three fossil (s) namely
I. Java ape man
II. Neanderthal man
III. Cro-magnon man
IV. Peking man
V. Heidelberg man
The correct options is Show Answer

Q852) Inheritance of acquired characters comes under Show Answer

Q853) Which one of the following factor do not allows Hardy-Weinberg principle to operate? Show Answer

Q854) Stings of honey bee and the stings of scorpion are
I. analogous organs
II. heterologous organs
III. homologous organs
IV. vestigial organs
The correct combination is Show Answer

Q855) Theoretically population size grows …A…, if everybody reproduced maximally and the fact that the
population size in reality is …B…, means that there had been competition for resources
Choose the correct option for A and B to complete the given statement with reference to NCERT text book Show Answer

Q856) Darwinism explains all the following except Show Answer

Q857) Which one of the following amino acid was not found to be synthesized in Miller’s experiment?
Statement 1: Coacervates are believed to be the precursors of life.
Statement 2: Coacervates were self-duplicating aggregates of proteins surrounded by lipid molecules. Show Answer

Q858) de Vries gave his mutation theory on organic evolution, while working on
Statement 1: Natural selection is the outcome of differences in survival and reproduction among
individuals that show variations in one or more traits.
Statement 2: Adaptive forms of a given trait tend to become more common; less adaptive ones become
less common or disappear. Show Answer

Q859) Darwin’s finches provide an excellent evidence in favour of organic evolution. These are related to which
of the following evidences?
Statement 1: Gene flow increases genetic variations.
Statement 2: The random introduction of new alleles into recipient population and their removal from
the donor population affects allele frequency. Show Answer

Q860) Cro –magnon was
Statement 1: Among the primates, chimpanzee is the closest relative of the present day humans.
Statement 2: The banding pattern in the autosome number 3 and 6 of man chimpanzee is remarkably
similar. Show Answer

Q861) Which one of the following amino acid was not found to be synthesized in Miller’s experiment?
Statement 1: The earliest organism that appeared on the earth were non-green and presumably
anaerobes.
Statement 2: The first autotrophic organisms were the chemoautotrophs that never released oxygen. Show Answer

Q862) The chronological order of human evolution from early to the recent is
Statement 1: Human ancestors never used their tails and so the tail expressing gene has disappeared
in them.
Statement 2: Lamarck’s theory of evolution is popularly called theory of continuity of germplasm Show Answer

Q863) Darwin judged the fitness of an individual by
Statement 1: The theory of survival of the fittest is widely misunderstood.
Statement 2: Evolution does not always increase the chances of a species survival and species do not
survive when such chances happen rapidly. Show Answer

Q864) Which of the following statements is correct?
Statement 1: Comparative biochemistry provides a strong evidence in favour of common ancestry of
living beings.
Statement 2: Genetic code is universal. Show Answer

Q865) de Vries gave his mutation theory on organic evolution, while working on
Statement 1: Animals adopt different strategies to survive in hostile environment.
Statement 2: Traying mantis is green in colour, which merges with plant foliage. Show Answer