Practice Test

Q1) Colchicine brings about: Show Answer

Q2) Triticale has been developed through intergeneric hybridisation between: Show Answer

Q3) In crop improvement programme haploids are important because they: Show Answer

Q4) Best method to increase crop yield is (e. g. wheat) Show Answer

Q5) Hereditary variations can be got with the help of: Show Answer

Q6) Crop improvement is possible through: Show Answer

Q7) A breeder evolving disease resistant variety will start with: Show Answer

Q8) Emasculation of flowers is carried out through removal of: Show Answer

Q9) Regulations governing movement of diseased plant material are called: Show Answer

Q10) A tool in crop improvement involving identification of genes, transfer and integration is: Show Answer

Q11) Crosses involving plants of the same variety are: Show Answer

Q12) An old breeding technique is: Show Answer

Q13) Aim of plant breeding is to: Show Answer

Q14) Pure line breeds refer to: Show Answer

Q15) Quarantine regulation is meant for: Show Answer

Q16) Androgenic haploids were produced from anther culture for the first time by: Show Answer

Q17) Emasculation is removal of: Show Answer

Q18) Selection is method of: Show Answer

Q19) Central Sugarcane Breeding Research Institute is situated at: Show Answer

Q20) Continued self pollination results in: Show Answer

Q21) Genetic diversity of agricultural crops is threatened by: Show Answer

Q22) Haploid plants are preferred over diploid plants for study of mutation because in haploids: Show Answer

Q23) Crop plants grown in monoculture are: Show Answer

Q24) Callus can form shoot or root by changing ratio of: Show Answer

Q25) Embryo culture is employed in: Show Answer

Q26) In tissue culture, single germinating pollen grain will form a plant. Show Answer

Q27) Somaclonal variations are obtained through: Show Answer

Q28) For producing protoplasts from plant cells, which of the following are required? Show Answer

Q29) Improved varieties of wheat suitable for Indian climates have been developed by: Show Answer

Q30) Triticum aestivum is: Show Answer

Q31) Which of the following yield an aromatic essential oil used as antiseptic, as fly repellent and modifier in hair lotion? Show Answer

Q32) Teak is obtained from plant: Show Answer

Q33) A milk-like preparation can be made from the seeds of: Show Answer

Q34) Vegetables are chief source of: Show Answer

Q35) The cheapest high energy crop of India is: Show Answer

Q36) Quinine is obtained from bark of: Show Answer

Q37) Sugars extracted from sugarcane and sugar beet differ in: Show Answer

Q38) The drug which reduces blood pressure is obtained from: Show Answer

Q39) Increase in food production is necessary because of: Show Answer

Q40) The green revolution in India was possible due to: Show Answer

Q41) New varieties of plants can be produced by: Show Answer

Q42) Which of the following is insect pest resistance? Show Answer

Q43) Which of the following is resistance to leaf and stripe rust: Show Answer

Q44) Indian Agriculture Research Institute is situated at: Show Answer

Q45) The botanical name of sweet flag, commonly used as antispasmodic, expectorant and remedies for asthma and chronic diarrhoea is: Show Answer

Q46) Pennisetum and Sorghum are of African origin, while rice originated in: Show Answer

Q47) Two temperate cereals, sometimes cultivated at high altitude in the tropics, are: Show Answer

Q48) Rice, maize, sorghum and millets are the principal cereals of the: Show Answer

Q49) The part of the grain in cereals, where much of the protein lies is the: Show Answer

Q50) The hexaploid wheat species from which modern types of wheat have been developed: Show Answer

Q51) Pulses belong to the family: Show Answer

Q52) The largest wheat producing country is: Show Answer

Q53) The scientific name of maize is: Show Answer

Q54) The International Rice-8 (IR-8) has been introduced in India from: Show Answer

Q55) Taichung native-the dwarf rice variety in India is a native of: Show Answer

Q56) Pathogen free plants are obtained from: Show Answer

Q57) High yielding variety of rice is: Show Answer

Q58) The botanical name of popcorn is: Show Answer

Q59) Maize has less protein content than: Show Answer

Q60) Maize grain is rich in: Show Answer

Q61) Maize grain is deficient in: Show Answer

Q62) The term Plantain refers to: Show Answer

Q63) The fruits of the plants which yield oil and fibres: Show Answer

Q64) Gum arabic is obtained from wild and semicultivated trees, in Sudan of: Show Answer

Q65) Which of the following is not a true pulse crop? Show Answer

Q66) The species which yield commercial cotton belongs to the genus: Show Answer

Q67) Anatomically, cotton fibres are: Show Answer

Q68) Which of the following is not a root vegetable? Show Answer

Q69) The cotton fibre from the cotton plant is obtained from: Show Answer

Q70) The commercial jute fibres are: Show Answer

Q71) Paddy is suitable for cultivation in: Show Answer

Q72) Fibre yielding plant is: Show Answer

Q73) Which one of the following is not an important Indian millet? Show Answer

Q74) The scientific name of Jowar is: Show Answer

Q75) The scientific name of Bajra is: Show Answer

Q76) The composition of cotton fibre is: Show Answer

Q77) The fibre crop occupying the largest area in India is as under: Show Answer

Q78) Fibres are made of: Show Answer

Q79) Which is the most important source of food and fodder? Show Answer

Q80) Gram belongs to family: Show Answer

Q81) Quite often pulse-crops are not manured with nitrogenous fertilisers. It is so because: Show Answer

Q82) Sugar is extracted besides sugarcane from: Show Answer

Q83) Indian rubber tree belongs to: Show Answer

Q84) The botanical name for groundnut is: Show Answer

Q85) Safflower oil is obtained from the seeds of: Show Answer

Q86) Potato and tomato are native of: Show Answer

Q87) The plant from which chewing gum is made: Show Answer

Q88) Which of the following is not an oil seed? Show Answer

Q89) The largest groundnut producing country is: Show Answer

Q90) The oil used for the treatment of toothache is: Show Answer

Q91) The principal source of sugar is/are: Show Answer

Q92) Sugar obtained from sugarcane is: Show Answer

Q93) The dry fibrous residue left after the extraction of sugarcane juice is known as: Show Answer

Q94) Cassava is a: Show Answer

Q95) The leaf juice of which one of the following plants is used for removal of opacity of cornea of the eye? Show Answer

Q96) Castor oil is obtained from: Show Answer

Q97) Which of the following plants is an oil as well as fibre yielding crop? Show Answer

Q98) Essential oils are made of: Show Answer

Q99) Macaroni is obtained from: Show Answer

Q100) The major souce of sugar in India is: Show Answer

Q101) Which of the following groups of plant genera produces fibres of economic importance? Show Answer

Q102) The plant whose seeds yield safflower oil and the petals an orange dye is: Show Answer

Q103) The drug "Belladona" is obtained from: Show Answer

Q104) International rice research institute is at: Show Answer

Q105) The chief groundnut producing state of India is: Show Answer

Q106) Commercial latex is obtained from: Show Answer

Q107) Largest producer of sugarcane is: Show Answer

Q108) One of the recently introduced new crops of oil seed in the deserts of India is jojoba. Select the correct botanical name of this plant. Show Answer

Q109) Leucaena-a fast growing tree, has been selected as a feed yielding tree under the social forestry programme in rural area of our country. What is the common name of this tree? Show Answer

Q110) Mark the odd one with regard to the source of following edible oils: Show Answer

Q111) Vanilla is obtained from: Show Answer

Q112) Which of the following statement is correct with respect to plant species and its uses? Show Answer

Q113) Of the world's top five crops in terms of annual production: Show Answer

Q114) Which of the following is an Indian medicinal plant? Show Answer

Q115) Most of the soft wood comes from: Show Answer

Q116) A good source of vitamin B_1 is: Show Answer

Q117) An important medicine for bronchitis is obtained from: Show Answer

Q118) In which state is the coir industry concentrated: Show Answer

Q119) Margarine is prepared from: Show Answer

Q120) Which of the following yields the heaviest wood? Show Answer

Q121) Botanical name of Sanjeevani or Hasnpari is: Show Answer

Q122) Cotton fibres are obtained from: Show Answer

Q123) Lint and fuzz and associated with: Show Answer

Q124) Cash crops are the crops which are grown: Show Answer

Q125) Heavea braziliensis is a source of: Show Answer

Q126) Cereals are major sources of: Show Answer

Q127) Which one of the following is a source of textile fibre: Show Answer

Q128) Timber or wood is: Show Answer

Q129) Jute is derived from: Show Answer

Q130) The economic importance of Diospyros ebenum is for: Show Answer

Q131) Groundnut oil is obtained from the plant: Show Answer

Q132) Sweetest sugar among natural carbohydrates is: Show Answer

Q133) Axillary buds are used to raise crop of: Show Answer

Q134) From which part of Cinchona a drug is obtained: Show Answer

Q135) Jute is obtained from a plant which belongs to the family: Show Answer

Q136) Which one of the following plants yields Sun-hemp? Show Answer

Q137) The drug plant Aconitum napellus belongs to the family: Show Answer

Q138) Which one of the following countries is the centre of origin of rice? Show Answer

Q139) Long fibres of cotton seed are known as: Show Answer

Q140) Triticale is obtained by crossing wheat with: Show Answer

Q141) Before the European invader which vegetable was absent in India? Show Answer

Q142) Which of the following is the pair of biofertilizers? Show Answer

Q143) Which statement is correct about centre of origin of plant? Show Answer

Q144) A collection of plants and seeds having diverse alleles of all the genes of a crop is called: Show Answer

Q145) "Jaya" and "Ratna" developed for green revolution in India are the varieties of: Show Answer

Q146) Himgiri' developed by hybridisation and selection for disease resistance against rust pathogens is a variety of: Show Answer

Q147) Semidwarf varieties of Rice were derived from which plant developed at IARI: Show Answer

Q148) Selection of good breeds of animals is based on: Show Answer

Q149) When breeding is between animals of the same breed, it is called: Show Answer

Q150) Hisardale is a new breed of sheep developed in Punjab by crossing: Show Answer

Q151) Maximum number of existing transgenic animals is of: Show Answer

Q152) Percentage of fibroin and sericin in silk is: Show Answer

Q153) Labeo and Catla are: Show Answer

Q154) During the period of 1960 to 2000, wheat production increased from: Show Answer

Q155) Poultry Farm Management includes the domestication of: Show Answer

Q156) Continued inbreeding usually reduces fertility and low productivity. It is termed: Show Answer

Q157) MOET is a programme for herd improvement. Which injection is injected into body, for super-ovulation? Show Answer

Q158) Swarm is: Show Answer

Q159) Which of the following hybrids have been successfully developed in India having high yield and resistant to water stress? Show Answer

Q160) Bagasse is a term related with: Show Answer

Q161) Polished rice grains are less nutritious than the unpolished grains because: Show Answer

Q162) The roots of which of the following are used for blending coffee: Show Answer

Q163) Emasculation is needed in: Show Answer

Q164) Wood is composed of: Show Answer

Q165) Which of the following methods is/are used in recovery of healthy plants from diseased plants? Show Answer

Q166) In shoot and root culture, excess of auxin in the medium will promote Show Answer

Q167) The colour of high yielding Mexican wheats were not liked by the Indians. It was originally red grained. Their cultivation was adopted in India on large scale only when exposure to gamma radiations converted them to amber grained. Which of the following methods of plant-breeding has been put into practice in the given case? Show Answer

Q168) Which of the following is the conventional method of plant breeding for disease resistance? Show Answer

Q169) Which of the following is/are the advantage(s) of micropropagation? Show Answer

Q170) Improved rice variety IR-8 has been introduced in India from Show Answer

Q171) Tissue culture technique can produce indefinite number of new plants from a small parental tissue. The economic importance of the technique is in raising Show Answer

Q172) Amino acids present in improved varieties of maize are Show Answer

Q173) The most common sources of single cell protein are Show Answer

Q174) Which of the following shows the correct sequence of steps involved in breeding a new genetic variety of a crop?
I. Selection and testing of superior recombinants.
II. Germplasm collection.
III. Cross hybridization among the selected parents.
IV. Evaluation and selection.
V. Testing, release and commercialization of new cultivars. Show Answer

Q175) The semi dwarf wheat which was instrumental in increasing wheat production was developed by Show Answer

Q176) The plant part which is used to culture is called Show Answer

Q177) Triticale is the first man made cereal crop. The combination of parents involve its production is Triticum and Show Answer

Q178) Which one of the following characters was most important for selection of present day maize plants? Show Answer

Q179) One of the following species of wheat was most primitive and wild Show Answer

Q180) What is the common name of Triticum monococcum? Show Answer

Q181) Which one of the following is the common hexaploid bread wheat? Show Answer

Q182) Which one of the following is called macaroni wheat which is mainly used for preparing pasta and noodles? Show Answer

Q183) What was the colour of high yielding Mexican wheat? Show Answer

Q184) Which one of the following pairs is correctly matched? Show Answer

Q185) Desired improved varieties of economically useful crops are raised by Show Answer

Q186) The indica variety of rice is crossed with japonica variety of rice because the later are Show Answer

Q187) In high yielding hybrid crop varieties, to exploit hybrid vigour, the farmers need to purchase fresh hybrid seed every year because Show Answer

Q188) Pomato Show Answer

Q189) Aims of plant breeding are to produce Show Answer

Q190) In which crops is the method of mass selection applied Show Answer

Q191) Both the environment and the genotype are important in the development of Show Answer

Q192) The self pollinated progeny of a homozygous plant constitute a Show Answer

Q193) The reason why vegetatively reproducing crop plants are best suited for maintaining Hybrid vigour is that Show Answer

Q194) Plants having similar genotypes produced by plant breeding are called Show Answer

Q195) Hybrid vigour is mostly due to Show Answer

Q196) A crop-produce should provide the optimum nutrition and must not contain an Show Answer

Q197) The emasculation of flower buds is achieved by the removal of Show Answer

Q198) Sterilization means Show Answer

Q199) The substance used for solidification of nutrient medium is Show Answer

Q200) An unorganised mass of cells is called Show Answer

Q201) The ability of plant cell to give rise to an entire new plant is called Show Answer

Q202) Culturing of isolated plant organs is called Show Answer

Q203) Mature embryos are mostly Show Answer

Q204) A novel technique devised to produce vast quantities of strong and healthy plantlets by rapid vegetative multiplication under controlled conditions Show Answer

Q205) Select the correct statement(s) -
I. IARI has released a mustard variety rich in vitamin C.
II. Pusa Sawani variety of Okra is resistant to aphids.
III. Hairiness of leaves provides resistance to insect pests.
IV. Agriculture accounts for approximately 33% of India's GDP and employs nearly 62% of the population. Show Answer

Q206) In hybridization, the haploids combine the advantages of Show Answer

Q207) Which one of the following is not a secondary metabolite? Show Answer

Q208) Who gave the idea that every plant cell is totipotent Show Answer

Q209) Name the Japanese cytologist who cultured anthers for the first time Show Answer

Q210) In order to obtain disease-free plants through tissue culture techniques, the best method is Show Answer

Q211) The best way to obtain Bacteria and viruses free plants through tissue culture Show Answer

Q212) The substance used in the tissue culture medium for induction of shoots in callus is Show Answer

Q213) In tissue culture medium, the embryoids formed from pollen grains is due to Show Answer

Q214) Haploid plantlets can be produced by Show Answer

Q215) The technique of obtaining large number of plantlets by tissue culture method is called Show Answer

Q216) The new varieties of plants are produced by Show Answer

Q217) 'Norin gene' of dwarfness in wheat originated through spontaneous mutation in Show Answer

Q218) Dharwar American Variety of cotton is the product of Show Answer

Q219) Selection of homozygous plant is Show Answer

Q220) Triticum aestivum, the common bread wheat is Show Answer

Q221) Which of the following hybrid varieties of crop plants has been develop in India Show Answer

Q222) Most cultivated plants are Show Answer

Q223) India's wheat yield revolution in the 1960s was possible primarily due to Show Answer

Q224) A self fertilizing trihybrid plant forms Show Answer

Q225) Somaclonal variation can be obtained by Show Answer

Q226) In maize, hybrid vigour is exploited by Show Answer

Q227) In the hexaploid wheat, the haploid (n) and basic (x) number of chromosomes are Show Answer

Q228) Embryo rescue is used for Show Answer

Q229) Scientists are trying to get hybridization between tomato and potato. The most accurate name would be Show Answer

Q230) Which of the following is not HYV of paddy? Show Answer

Q231) Which part of the plant is best suited for making virus free plants? Show Answer

Q232) Apiculture is associated with the maintenance of Show Answer

Q233) Inbreeding increases Show Answer

Q234) Which of the following is the consequence of plant diseases? Show Answer

Q235) Fill up the blanks - Saccharum barberi was originally grown in north India, but had ___A___ sugar content and yield. Tropical canes grown in south India Saccharum officinarum has ____B___ stems and ____C___ sugar content but did not grow well in north India. These two species were successfully crossed to get sugar cane varieties combining the desirable qualities of high yield, ___D___ stems, ___E___ sugar and ability to grow in the sugar cane areas of ___F___ India. Show Answer

Q236) Select the correct statements Show Answer

Q237) Select the correct statements Show Answer

Q238) The flowers of which plant are not pollinated by bee? Show Answer

Q239) Bees are important for Show Answer

Q240) IPGRI is abbreviation of Show Answer

Q241) Shoot develops in tissue culture when there is Show Answer

Q242) Norman Borlaug is associated with Show Answer

Q243) Borlaug developed new varieties of Show Answer

Q244) Haploids of Datura were obtained through Show Answer

Q245) Fill in the blanks - Semi-dwarf rice varieties were derived from ____A____, (developed at International Rice Research Institute (IRRI), Philippines) and Taichung Native-1 (from ____B____). The derivatives were introduced in ____C____. Later better-yielding semidwarf varieties Jaya and Ratna were developed in ____D___. Show Answer

Q246) An improved variety is Show Answer

Q247) An important germplasm storing center in India is Show Answer

Q248) Pure line variety of wheat is Show Answer

Q249) Evaluation of new variety in India is done by Show Answer

Q250) Gene responsible for dwarfing in wheat is Show Answer

Q251) Scented basmati rice is the contribution of Show Answer

Q252) Which of the following is an example of inter-generic hybridization? Show Answer

Q253) The dwarf wheat varieties brought from Mexico into India were Show Answer

Q254) Antinutritional factor, neurotoxic cyanoalanine is found in Show Answer

Q255) Cereals and millets are mainly deficient in which amino acids? Show Answer

Q256) Which of the following is incorrect w.r.t. SCP? Show Answer

Q257) The objectives of breeding improved nutritional quality of crops are to increase Show Answer

Q258) Select the correct statement(s) Show Answer

Q259) Which statement(s) is correct? Show Answer

Q260) Which of the following has been developed by India? Show Answer

Q261) The conventional method of breeding for resistance includes which of the following steps? Show Answer

Q262) Which one is correct about Atlas 66? Show Answer

Q263) High yielding, semi dwarf varieties of rice are Show Answer

Q264) Select the false statement(s) Show Answer

Q265) Which is/are false? Show Answer

Q266) Which of the following matching is correct? Show Answer

Q267) Cryopreservation is -
A. preservation at ultra low temperature
B. preservation in liquid nitrogen
C. preservation through exposure to gamma rays
D. preservation of semen Show Answer

Q268) Which one is a source of single cell protein?
A. Nostoc
B. Spirulina
C. Chlorella
D. Scenedesmus Show Answer

Q269) Which of the following is a source of single cell protein?
A. Saccharomyces
B. Torulopsis
C. Candida
D. Fusarium Show Answer

Q270) Which one is a chemical mutagen?
A. Ethylmethane sulphonate
B. Sodium azide
C. Gamma rays
D. 2, 4-D Show Answer

Q271) Which of the following is a variety of rice?
A. Bala
B. Kalyan sona
C. Jaya
D. Sonars 64 Show Answer

Q272) Which one is a rich source of vitamin A?
A. Carrot
B. Spinach
C. Lemon
D. Beans Show Answer

Q273) Which factors are responsible for development of disease in a plant?
A. Susceptible host
B. Aggressive pathogen
C. Conducive environment
D. Excess of fertilizer Show Answer

Q274) Given below are five statements (A to E) each with one or two blanks. Select the option which correctly fills up the blanks in the statements.
Statements :
A. When a hybrid is produced by _____ of somatic cells of two varieties or species, it is known as _____.
B. _____ is the
tissue culture technique used for rapid vegetative multiplication of ornamental plants and fruit trees by using small sized emplants.
C. _____ is the sum total of all the alleles of the genes present in a crop and its related species.
D. A _____ is a hybrid of male donkey and a female horse.
E. The hybrid between the female donkey and male horse is called ____. Show Answer

Q275) Given below are the statements (A to E) each with one blank. Select the option which correctly fills up the blanks in the statements.
Statements :
A. For the process of hybridization, selfing of parents is done, to reduce the _____.
B. Performance of a crop or an animal depends mainly on its genotype and the _____ in which it is grown.
C. An ____ is excised from its original location and used for initiating a culture.
D. The scientific name of Indian cattle is ____.
E. MOET (multiple ovulation embryo transfer) is a method of _____. Show Answer

Q276) Identify the false statements -
I. One of the objectives of plant breeding is to develop disease, insect and pest resistant varieties.
II. Plant breeding is both art and science.
III. Catla and Rohu are the most eaten marine fishes in our country.
IV. South Indian sugarcane variety Saccharum officinarum has thiner stem and lower sugar content than the North Indian one. Show Answer

Q277) Green revolution in India occurred during Show Answer

Q278) In plant breeding programmes, the entire collection (of plants/seeds) having all the diverse alleles for all genes in a given crop is called Show Answer

Q279) Genetically improved crop varieties can be developed in laboratory by Show Answer

Q280) An alga which can be employed as food for human being is Show Answer

Q281) To obtain virus - free healthy plants from a diseased one by tissue culture technique, which part/parts of the diseased plant will be taken Show Answer

Q282) 'Give me a living cell of any plant and I will give you a thousand plants of the same type'. This statement refers to Show Answer

Q283) During hardening, plantlets are kept under Show Answer

Q284) To induce formation of organs in a callus it is necessary to provide Show Answer

Q285) Development of hybrid varieties of plants and better milk yielding varieties of cows is an example of Show Answer

Q286) A technique of micropropagation is Show Answer

Q287) Among the following how many varieties are improved varieties of wheat.
Jaya, Sonalika, Ratna, Kalyan sona, Sharbati sonora, Atlas-66 Show Answer

Q288) The conventional method for development of disease resistance are Show Answer

Q289) For the crop improvement, plant breeder required different types of resistant gene. The source of these resistant gene may be Show Answer

Q290) Which of the following scientist is the initiator of "Lab-to-Land" program? Show Answer

Q291) Which one of the following options gives the categorization of six improved varieties of plant according to the type of crops (A, B, C) they give out? Show Answer

Q292) The Indian Agriculture Research Institute, New Delhi has released several vegetable crops that are rich in vitamins and minerals.
How many of these vegetables are biofortified which are enriched in vitamin A and vitamin C?
Carrot, Spinach, Bitter gourd, Bathua, Mustard, Tomato, French peas, Lablab, Garden peas. Show Answer

Q293) Choose the correct statements among the following -
I. Spirulina as single cell protein can serve as food rich in protein.
II. Pomato, new hybrid plant formed by somatic hybridization is the most successful hybrid for commercial utilization.
III. Iron fortified rice variety has been developed which contain over 5 times as much iron in common varieties.
IV. We can use even sewage to produce large quantities of Spirulina. Show Answer

Q294) Nobel laureate Norman E. Borlaug developed his modified crop varieties at Show Answer

Q295) Select the correctly matched pair Show Answer

Q296) A system of rotating crops with legume or grass pasture to improve soil structure and fertility is called Show Answer

Q297) A true breeding plant is Show Answer

Q298) Among the following edible fishes, which one is a marine fish having rich source of omega-3 fatty acids? Show Answer

Q299) Which of the following statements does not provide an explanation for hybrid vigour? Show Answer

Q300) Which of the following is an introduced variety/crop? Show Answer