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Class 12 Biology Chapter 3 Human Reproduction Quiz 3 (60 MCQs)

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1. What hormone promotes secondary sexual characteristics in females?
2. Which of these is the name for human embryonic development?
3. When a mature egg leaves the ovary, it enters the
4. The leydig's cells as found in human body are the secretory source of (2012)
5. Changes in GnRH pulse frequency in females is controlled by circulating levels of
6. If one ovary is removed from a women, she will
7. Which hormone stimulates the development of the endometrium?
8. The ovarian cycle has three stages:
9. Approximately how long does it take for childbirth to occur, from fertilization to birth?
10. LH surge leads to ..... in females
11. Fertilization of human ovum takes place in the:
12. Which structure stores mature sperm?
13. A normal ovum and a normal sperm carry the same number of chromosomes.
14. Menstrual cycle occurs in
15. Correct sequence of hormone secretion from beginning of menstruation is
16. Identify the following stages of adolescence:Moving from a child-parent/ guardian relationship to more adult-adult relationships.
17. Capacitation occurs in
18. The chemical present on the ovum that results in agglutation reaction
19. The joining of a sperm cell and an egg is called .....
20. On what day does ovulation occur?
21. How many sperm are needed to fertilize an ovum (egg)?
22. Where in the male reproductive system are sperm produced?
23. Extrusion of second polar body from egg nucleus occurs:
24. During this trimester, the fetus grows and the organs finish developing.
25. Sexual maturity is reached during the period of .....
26. Fine adjustment knob of a microscope is used to
27. FERTILISATION TAKES PLACE IN WHICH PART OF OVIDUCT?
28. Which hormone is produced by the hypothalamus?
29. Which one of the following statements is false in respect of viability of mammalian sperm? (2012)
30. What is the role of the bladder?
31. Which of the following consists of haploid number of chromosome?
32. Spermatogonia develop through dividsion
33. One function of the placenta in a human is to
34. No new follicles develop in the luteal phase of the menstrual cycle because:
35. Which cells are present on the inside wall of the seminiferous tubule?
36. The main function of the placenta is to:
37. The zygote will develop into .....
38. What are gonads?
39. Relaxin is produced by
40. Sertoli cells are found in
41. Graafian follicle rupture and release secondary oocyte from ovaryThis process occur due to
42. Which of the following statements about the zygote formed after fertilization is correct?
43. The process of formation of ovum
44. Name the cell that supplies nutrients to spermatids while they develop into spermatozoa
45. Role of leydig cells of testis is
46. The test-tube Baby Programme employs which one of the following techniques:
47. Humans are called ..... as they give birth to young ones.
48. What happens to stop more than one sperm fertilising an ovum?
49. The embryo's skin and nervous system form from which germ layer?
50. What are the three stages of birth
51. What hormone needs to spike to signal ovulation?
52. Which part of the male reproductive system is common in urinary system?
53. When does conception, or fertilization, occur?
54. In the embryonic development .....
55. This hormone brings about powerful contraction of uterine muscles during child birth.
56. The testes are situated outside the abdominal cavity within a pouch called
57. First Extra embryonic membrane of mammalian embryo are derived from
58. During spermatogenesis, which of the following cells is the first to become haploid?
59. What happens if the egg is not fertilized during the menstrual cycle?
60. What happens during ovulation?
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