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Class 12 Biology Chapter 2 Sexual Reproduction In Flowering Plants Quiz 10 (60 MCQs)

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1. Which fruit develops from inferior ovary?
2. ..... is not an endospermic seed.
3. Ovary wall develops into:
4. Pollination occurs in
5. Which phase of the life cycle is dominant in the individuals of angiosperms?
6. The fertilisation in flowering plants is known as ..... fertilisation.
7. In angiosperms, the number of meiotic divisions required to produced 100 microspores is
8. Offspring are exact copies of the parent
9. Ovule is attached to placenta by:
10. Which of the given statement are true?a) During the development of dicot embryo, heart shaped embryo is followed by globular embryo.b) The part of embryonal axis above the level of cotyledons is epicotyl, while the part below the level of cotyledons is hypocotyl.c) monocot seeds possess a single cotyledon represents by scutellum.
11. Number of microsporangia in an angiospermic anther is
12. The total number of nuclei involved in double fertilization in angiosperms are
13. Which word describes the function of the petals?
14. The fibrous thickening of endothecium is largely made up of
15. Which type of pollination occurs when pollen from one flower fertilizes the ovule of another flower?
16. A male reproductive structure in a flower is called a(n) .....
17. Pollination that occurs in the same or different flowers of the same plant
18. Part of the gynoecium which receives the pollen is called
19. Forms of seed dispersal include:
20. How many mitotic divisions are required for megaspore to form embryo sac
21. Which part of the flower is the most beautiful and also attracts insects?
22. Section D-One-word answers (convert to MCQ):Select the correct one-word term for the female gametophyte of angiosperms.
23. Which type of seed contains stored food in the endosperm?
24. When the pollen grain is mature, it contains two cells, the ..... A ..... and ..... B .....
25. Which of the following structures contribute to the formation of fruits in apples, strawberry and cashew?
26. The transfer of pollen from the anther to the stigma is called .....
27. Viability of date palm (Phoenix dactylifera) seed is
28. The terminal structure of stamen is called
29. How many pollen mother cells should undergo meiotic divison to produce 64 pollen grains?
30. Both, autogamy & geitonogamy are prevented in
31. A ..... fuses with a ..... in fertilization
32. Given below are 4 technical terms associated with outbreeding devices in angiosperms along with their meaning. One of them is incorrect. Find it.
33. At what temperature are pollens stored in pollen banks?
34. The stalk which joins ovule and placenta is called
35. Flowering plants have developed certain outbreeding devices to discourage self-pollination and encourage cross-pollination. One of these is not an example of such outbreeding device.
36. How many carpels can the gynoecium of a flower have?
37. A gymnosperm flowers
38. One individual can start a new population in a new area
39. Each Stamen consists of a thin supporting stalk called a(n) .....
40. Choose the mismatched pair
41. Filiform apparatus are
42. Filiform apparatus performs the functions of
43. The stamens represent
44. Section C-True or False:Synergids guide the pollen tube to the egg. Choose True or False.
45. Which of the following plant came into India as a contaminant with imported wheat?
46. Cleistogamous flowers are:
47. Parthenocarpy produces:
48. Which of the following is a characteristic of a pollen grain that is wind-pollinated?
49. Offspring are genetically identical to the parent in?
50. Study of pollen grains is called
51. Which one of the following is provide nutrition to the growing pollen tube?
52. Pericarp in flowering plants is formed from .....
53. Transfer of pollen grains from anther to stigma of anther flower of the same plants is called
54. Offspring are genetic clones of the parent
55. What are the four distinct phases of sexual reproduction in flowering plants?
56. The male reproductive part is known as .....
57. Insect-pollinated flowers have rough/spiky and sticky pollen grains that can stick to insects's body.
58. How many egg cells are there in embryo sac?
59. A flower of tomato plant following the process of sexual reproduction 300 seeds.What is the minimum number of pollen grains that must have been involved in the pollination of its pistil?
60. Penetration of pollen tube into ovule is:
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