Welcome to your Sexual Reproduction in Flowering Plants MCQs Mock Test of Class 12th Biology
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Question 1. Heterostyly as a contrivance for cross-pollination is found in
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Question 2. The part of gynoecium that determines the compatible nature of pollen is
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Question 3. Part of the gynoecium which receives the pollen is called
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Question 4. Growth of pollen tube towards embryo sac is
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Question 5. During the process of fertilisation the pollen tube of the pollen grain usually enters the embryo sac through
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Question 6. Fusion of one of the male gametes with egg nucleus is referred to as
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Question 7. The total number of nuclei involved in double fertilisation in angiospersm are
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Question 8. Male and female flowers are present on different plants (dioecious) to ensure xenogamy, in
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Question 9. Feathery stigma occurs in
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Question 10. Plants with ovaries having only one or a few ovules are generally pollinated by
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Question 11. Which of the following is not a water pollinated plant ?
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Question 12. Spiny or sticky pollen grains and large, attractively coloured flowers are associated with
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Question 13. Endospermic seeds are found in
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Question 14. In albuminous seeds, food is stored in _______ and in non albuminous seeds, it is stored in _______.
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Question 15. Persistent nucellus is called as _______ and is found in _______.
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Question 16. What is the function of filiform apparatus in an angiospermic embryo sac?
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Question 17. The female gametophyte of a typical dicot at the time of fertilisation is
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Question 18. Polygonum type of embryo sac is
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Question 19. Both chasmogamous and cleistogamous flowers are present in
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Question 20. Even in absence of pollinating agents seed-setting is assured in
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Question 21. Indentify the wrong statement regarding post-fertilisation development.
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Question 22. Polyembryony commonly occurs in
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Question 23. An embryo may sometimes develop from any cell of embryo sac other than egg. It is termed as
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Question 24. Embryo sac is to ovule as _______ is to an anther.
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Question 25. The stamens represent
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Question 26. Anther is generally
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Question 27. The anther wall consists of four wall layers where
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Question 28. Mature ovules are classified on the basis of funiculus. If micropyle comes to lie close to the funiculus the ovule is termed as
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Question 29. When micropyle, chalaza and hilum lie in a straight line, the ovule is said to be
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Question 30. Fragrant flowers with well developed nectaries are an adaptation for
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Question 31. Pollen kitt is generally found in
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Question 32. Which of these is a condition that makes flowers invariably autogamous ?
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Question 33. The innermost layer of anther is tapetum whose function is
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Question 34. Callase enzyme which dissolves callose of pollen tetrads to separate four pollens is provided by
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Question 35. In angiosperms various stages of reductional division can best be studied in
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Question 36. Study of pollen grains is called
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Question 37. Several pollen grains form a unit designated as pollinium in Family
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Question 38. The outermost and innermost wall layers of microsporangium in an anther are respectively
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Question 39. During microsporogenesis, meiosis occurs in
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Question 40. From among the sets of terms given below, identify those that are associated with the gynoecium.
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Question 41. Science of cultivation, breeding, marketing and arrangement of flowers is called
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Question 42. Nonessential floral organs in a flower are
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Question 41. Triple fusion in Capsella bursa pastoris is fusion of male gamete with
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Question 42. Double fertilisation was first discovered in 1898 by _______ in Fritillaria and Lilium.
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Question 43. If an endosperm cell of an angiosperm contains 24 chromosomes, the number of chromosomes in each cell of the root will be
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Question 44. The cells of endosperm have 24 chromosomes. What will be the number of chromosomes in the gametes ?
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Question 45. The true embryo develops as a result to fusion of
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Question 46. Father of Indian embryology is
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Question 47. The portion of embryonal axis between plumule (future shoot) and cotyledons is called
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Question 48. Coleoptile and coleorhiza are the protective sheaths _______ covering _______ and _______ respectively.
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Question 49. _______ is not an endospermic seed.
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Question 50. Endosperm is completely consumed by the developing embryo in
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