Practice Test

Q1) The type of pollination in angiosperms is Show Answer

Q2) In angiosperms, the pollination is Show Answer

Q3) Emasculation is achieved by: Show Answer

Q4) In a bisexual flower when the gynoecium matures earlier than anther, it is called as: Show Answer

Q5) Pollination by snail and slug is known as: Show Answer

Q6) Incompatibility is the inability of certain gametes, even from genetically similar plant species, to fuse with each other. If it is due to genotype of pollen termed: Show Answer

Q7) A typical example of cross pollination is: Show Answer

Q8) Continued self-pollination generation after generation, result in: Show Answer

Q9) Stigma is always sticky and rough in: Show Answer

Q10) In wheat and sugarcane the pollination takes place by: Show Answer

Q11) If water causes pollination, it is called: Show Answer

Q12) Insect pollinated flowers possess: Show Answer

Q13) Cleistogamous flowers are: Show Answer

Q14) In Ficus the pollination is affected by: Show Answer

Q15) When male and female parts of a flower mature at different times, it is termed: Show Answer

Q16) Pollination by bats is known as: Show Answer

Q17) Cross-pollination is advantageous because it results in formation of: Show Answer

Q18) To avoid self-pollination, the pollen grains of some flowers have no fertilizing effect on the stigma of the same flower. This condition is: Show Answer

Q19) If a pollen of a flower falls on the stigma of another flower belonging to same plant, it is: Show Answer

Q20) Which one of the following part of pistil receives the pollen during pollination? Show Answer

Q21) Pollinia are sac-like structures in which: Show Answer

Q22) Allogamy through biotic agency is called: Show Answer

Q23) Chiropterophilous flowers possess: Show Answer

Q24) Pollination of Pinus is: Show Answer

Q25) The Yucca flower is pollinated by: Show Answer

Q26) In ornithophilous plants: Show Answer

Q27) Hypohydrophily occurs in: Show Answer

Q28) In moth pollinated flowers: Show Answer

Q29) The moth Pronuba is associated with the pollination of: Show Answer

Q30) The moth Dianthoecia is associated with the pollination of: Show Answer

Q31) The condition best suited for autogamy is: Show Answer

Q32) When snails pollinate a flower, it is termed as: Show Answer

Q33) Translator mechanism for pollination is seen in: Show Answer

Q34) The pedicel of the female flower coils after fertilization in: Show Answer

Q35) The act of pollination was used to be performed by Aryan kings as a religious ceremony in: Show Answer

Q36) The phenomenon of pollen grains being transferred to stigma by air is called: Show Answer

Q37) Bees are important to agriculture as they: Show Answer

Q38) Feathery stigma occurs in: Show Answer

Q39) Pollination characteristically occurs in: Show Answer

Q40) Ornithophily refers to: Show Answer

Q41) Chief pollinators of agricultural crops are: Show Answer

Q42) Transfer of pollen to the stigma of another flower of the same plant is: Show Answer

Q43) Fragrant flowers with well developed nectaries are an adaptation for: Show Answer

Q44) Pollination occuring in closed flowers is: Show Answer

Q45) Self-pollination means: Show Answer

Q46) Stigma is always rough and sticky in: Show Answer

Q47) Progeny resulting from cross-pollination: Show Answer

Q48) Maturation of stamens and pistils at different times in the same flower is called: Show Answer

Q49) In bisexual flowers when the gynoceium matures earlier than the androecium, it is called: Show Answer

Q50) Myrmecophily is a beneficial association between some flowering plants and: Show Answer

Q51) Pollination by ants is: Show Answer

Q52) Some flowers possess pleasant odour and attractive colours for: Show Answer

Q53) Anemophily type of pollination is found in: Show Answer

Q54) Anemophily means: Show Answer

Q55) Wind pollination is common in: Show Answer

Q56) In which one of the following pollination is autogamous? Show Answer

Q57) The allogamy is best favoured by: Show Answer

Q58) Cross pollination in true genetic sense within a species is called as: Show Answer

Q59) Cleistogamous flowers are not seen in: Show Answer

Q60) When some plants produce more than one type of flowers, the phenomenon is called as: Show Answer

Q61) Above ground cleistogamous flowers are formed late in the season in: Show Answer

Q62) The smell in the flowers of Hyacinthus is due to: Show Answer

Q63) Piston mechanism for pollination is seen in: Show Answer

Q64) Lever mechanism for pollination is seen in: Show Answer

Q65) Maize is: Show Answer

Q66) When pollen of one flower pollinates stigma of a different flower but on the same plant, this is called as: Show Answer

Q67) Butterflies pollinate: Show Answer

Q68) Moth Pronuba / Tegaticula is dependent for its survival on plant: Show Answer

Q69) The term pollination signifies - Show Answer

Q70) Autogamy is - Show Answer

Q71) Contrivance for self-pollination / autogamy is - Show Answer

Q72) Cleistogamous flowers produce assured seed-set even in the absence of pollinator - why ? Show Answer

Q73) Which of the following plants produce(s) chasmogamous and cleistogamous flowers ? Show Answer

Q74) Chasmogamy is pollination in - Show Answer

Q75) Which of the following devices is not used by plants to prevent autogamy - Show Answer

Q76) Subterranean cleistogamous and geophilous flowers occur in - Show Answer

Q77) Pollination occuring in closed flowers is - Show Answer

Q78) Cleistogamous flowers are - Show Answer

Q79) The process whereby a perfect flower is pollinated by its pollen is called - Show Answer

Q80) The term used when anthers and stigma of an intersexual or perfect flower ripen before the opening of buds as in wheat and pea is - Show Answer

Q81) Transfer of pollen grains from anther to the stigma of another flower of same plant is - Show Answer

Q82) Geitonogamy is - Show Answer

Q83) Which of the following is false about xenogamy ? Show Answer

Q84) Go through the following statements -
(I) Flowers are bisexual and homogamous maturing anther and sigma of a flower at the same time
(II) Mechanical devices bringing anthers and stigma close together in a bisexual chasmogamous flower
(III) Cleistogamy (bisexual flowers remain closed)
(IV) Anther and sigma of an intersexual flower mature in bud condition.
The above contrivances favour - Show Answer

Q85) Go through the following points.
(I) Dicliny (Unisexuality of flower)
(II) Dichogamy (Protoandry or protogyny)
(III) Self sterility / self incompatibility
(IV) Heterosyly
(V) Herkogamy (Barrier between anther and stigma of a bisexual homogamous flower)
The above contrivances prevent - Show Answer

Q86) Which of the following statements is correct ? Show Answer

Q87) Go through the following statements -
I. Flowers are smail. They are often packed in inflorescence
II. Flowers are colourless, nectarless and odourless
III. Well exposed stamens
IV. Pollen grains - produced in large number, light, non-sticky
V. Flowers often have a single ovule in each ovary
VI. Stigma - large, often feathery.
The above contrivances favour - Show Answer

Q88) Which of the following is false? Show Answer

Q89) Which of the following statement is false ?
I. Vallisneria and Hydrilla are fresh water plants while sea-grasses (e.g. Zostera) are marine plant
II. Vallisneria is epihydrophilous while zostera is hypohydrophilous.
III. Pollination in water lily/Lotus (Nymphea) and Eichhornia (water hyacinth) takes place by insects
IV. In majority of aquatic plants flowers emerge above the level of water and are pollinated by insects or wind
V. In most of the water pollinated species, pollen grains are protected from wetting due to absence of mucilaginous covering
VI. In hydrophilous plants pollen grains are spherical. Show Answer

Q90) The most common type of pollination is - Show Answer

Q91) Find out the correct option - Show Answer

Q92) Moth (Pronuba / Tegaticula) passes its larval stage in plant pollinated by it. The plant is Show Answer

Q93) An obligate association between flower and pollinating agent is found in - Show Answer

Q94) Which of the following plants provide floral rewards to their pollinating agents - Show Answer

Q95) Which of the following are usual floral rewards to pollinating animals ? Show Answer

Q96) I. Flowers are usually large, colorful, fragrant
II. Pollen grains are produced in large number
III. Pollen grains are light in weight and non-sticky
IV. Sticky pollen grains
V. Stigma inserted and sticky
VI. Stigma is feathery
VII. Edible pollen grains and nectar.
Which of the above characters favour entomophily? Show Answer

Q97) In castor and maize autogamy is prevented but geitonogamy occurs because - Show Answer

Q98) All of the following include outbreeding devices except - Show Answer

Q99) Repeated self pollination over the generation produces - Show Answer

Q100) Unisexuality of flower prevents - Show Answer

Q101) Self-incompatibility -
(I) is a device to prevent inbreeding
(II) Provides a biochemical block to self-fertilization
(III) Ensures cross-fertilization
(IV) is governed by pollen-pistil interaction
(V) is governed by series of multiple alleles
(VI) Prevents self pollen (From the same flower or other flower of the same plant) from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil. Show Answer

Q102) Self-incompatibility - Show Answer

Q103) For artificial hybridisation experiment in bisexual flower, which of the sequences is correct ? Show Answer

Q104) Which of the following is false about emasculation ? Show Answer

Q105) Emasculation is not required when flowers are - Show Answer

Q106) The purpose of bagging an emasculated flower in artificial hybridisation programme is Show Answer

Q107) Wind pollination is common in Show Answer

Q108) Plants with ovaries having only one or a few ovules, are generally pollinated by : Show Answer

Q109) Both, autogamy and geitonogamy are prevented in - Show Answer

Q110) Even in absence of pollinating agents seed setting is assured in Show Answer

Q111) Advantage of cleistogamy is Show Answer

Q112) Large stout, nocturnal flowers producing copious nectar and emitting fermenting fruity odour, are the adaptations for Show Answer

Q113) What is not true about emasculation of a flower while performing an artificial cross ? Show Answer

Q114) Papaya is a dioecious plant. This condition prevents Show Answer

Q115) Which one of the following may require pollinators, but is genetically similar to autogamy ? Show Answer

Q116) Which of the following are the important floral rewards to the animal pollinators ? Show Answer

Q117) Wind pollination is quite common in - Show Answer

Q118) In which of following for artificial hybridisation there is no need for emasculat - Show Answer

Q119) Which of the following statements is not correct ? Show Answer

Q120) Pollination in water hyacinth and water lily is brought about by the agency of : Show Answer

Q121) Which of the following is not a water pollinated plant? Show Answer

Q122) Spiny or sticky pollen grains and large attractively coloured flowers are associated with Show Answer

Q123) Refer the given statements:
(i) Both wind and water pollinated flowers are not very colourful and do not produce nectar.
(ii) Entomophilous flowers are large, colourful,fragrant and rich in nectar.
(iii) Kigelia pinnata is an insect pollinated flower
Which of the above statements is/are incorrect? Show Answer

Q124) Flowering plants have developed certain outbreeding devices to discourage self-pollination and to encourage cross-pollination. One of these is not an example of such outbreeding device. Show Answer

Q125) Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in Show Answer

Q126) The part of gynoecium that determines the compatible nature of pollen is Show Answer

Q127) Read the given statements and select the correct option.
Statement 1: Insects visit flowers to gather pollen.
Statement 2: Attraction to flowers prevents the insects from damaging other parts of the plant. Show Answer

Q128) Select the incorrect pair of type of pollination and the corresponding pollination agency. Show Answer

Q129) Part of the gynoecium which receives the pollen is called Show Answer

Q130) Plant with ovaries having only one or a few ovules, are generally pollinated by Show Answer

Q131) Even in absence of pollinating agents seed-setting is assured in Show Answer

Q132) Pollen kitt is generally found in Show Answer

Q133) Heterostyly as a contrivance for cross-pollination is found in Show Answer

Q134) Several pollen grains from a unit designated as pollinium in family Show Answer

Q135) Transfer of pollen grain from anther to the stigma of ovary is called Show Answer

Q136) Removal of anthers of some flowers during plant breeding is Show Answer

Q137) Which one of the following is an example of cleistogamy? Show Answer

Q138) Insect pollinated flowers are Show Answer

Q139) When pollen is transferred from anther of a flower to stigma of the another of the another flower of the same plant, it is referred to as Show Answer

Q140) Which one of the following is not a correct explanation of cross-pollination? Show Answer

Q141) Majority of plants are Show Answer

Q142) Pollination by insect is Show Answer

Q143) A bisexual flower which never open, is known as Show Answer

Q144) Characteristics of wind pollinated pollens is, they are Show Answer

Q145) In chasmogamy pollination takes place in Show Answer

Q146) Which one of the following is a reference to xenogamy ? Show Answer

Q147) Type of pollination in commelina is Show Answer

Q148) Xenogamy or cross-pollination is performed by
I. Abiotic agencies
II.Biotic agencies
III.Insects only
Select the correct option for the given question Show Answer

Q149) In wind pollination the pollens are feathery, whether it is Show Answer

Q150) Devices for self-pollination are Show Answer

Q151) Pollination by snail and slug is called Show Answer

Q152) Some plant have a habit of harbouring ants to save the plants from damage by other animals which is known as Show Answer

Q153) One advantage of cleistogamy is Show Answer

Q154) Cleistogamous flowers are trictly autogamous because they remain Show Answer

Q155) Wind pollinated flowers often have Show Answer

Q156) Continued self-pollination results in Show Answer

Q157) Wind pollinated flowers are Show Answer

Q158) Self-incompatibility is a device for
I. Ensuring cross-pollination
II. Preventing self-pollination
III. Ensuring self-fertilisation
IV. Genetic control for self-fertilisation
Choose the correct statements from those given above Show Answer

Q159) Which of these is not essential for allogamy? Show Answer

Q160) Unisexuality of flowers prevents Show Answer

Q161) Self-pollination means Show Answer

Q162) The type of pollination adaptation found in calotropis is Show Answer

Q163) The process of transfer of pollen grains from anther to stigmatic surface with the help of water is called Show Answer

Q164) Anemophily is a type of pollination found in Show Answer

Q165) Chances of pollination in air and water are increased by increasing number of pollens. This statement is Show Answer

Q166) Pollination by bats is called Show Answer

Q167) Which one of the following is not a device to promote cross-pollination? Show Answer

Q168) In artificial hybridization the steps involved are
I. Bagging
II. Emasculation
III. Rebagging
Their right arrangement is Show Answer

Q169) Device to discourage self-pollination or increase cross-pollination is Show Answer

Q170) Grass family (Poaceae) contains Show Answer

Q171) Ornithophily refers to the pollination by which of the following? Show Answer

Q172) Wind pollinated flower have long well exposed stigma. This statement is Show Answer

Q173) An interesting modification of flower shape for insect pollination occurs in some orchids in which a male insect mistakes the pattern on the orchid flower for the female of his species and tries to copulate with it, thereby pollinating the flower. This phenomenon is called Show Answer

Q174) Cleistogamous flowers Show Answer

Q175) Autogamy stands for Show Answer

Q176) Water pollinated plant is Show Answer

Q177) Transfer of pollen grains from one flower to another flower of same plant is Show Answer

Q178) Choose the mis –matched option. Show Answer

Q179) Pollination is Show Answer

Q180) Emasculation is not required in Show Answer

Q181) Self incompatibility is Show Answer

Q182) In Amorphophyllus and Yucca, the moth lay egg into the Show Answer

Q183) Cleistogamous flower is found in Show Answer

Q184) Bright colouration of flowers is an adaptation for Show Answer

Q185) Transfer of pollen grains from the anther to the stigma of another flower of the same plants is called Show Answer

Q186) Water pollination Show Answer

Q187) Plants of which one of the following groups of genera are pollinated by the same agency? Show Answer

Q188) Wind pollinated and water pollinated plants Show Answer

Q189) Wind pollination is common in grassess. This statement is Show Answer

Q190) Aquatic plant like water-hyacinth and water lily are pollinated by Show Answer

Q191) In nature, cleistogamous flowers are Show Answer

Q192) Anemophily is pollination by Show Answer

Q193) Which of the following statement is true with reference to cross pollination in angiosperms? Show Answer

Q194) In which one of the following pollination is autogamous? Show Answer

Q195) Which of the following is pollinated by water? Show Answer

Q196) Which type of pollen grains are found in insect pollinated flowers? Show Answer

Q197) Long , ribbon-like pollen grains are seen in some Show Answer

Q198) Given below are two statement: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Both wind and water pollinated flowers are not very colourful and do not produce nectar.
Reason (R): The flowers produce enormous amount of pollen grains in wind and water pollinated flowers.
In the light of the above statements, choose the correct answer from the options given below:
Show Answer

Q199) Which one of the following types of pollination brings genetically different types of pollen grains to the stigma?
Show Answer