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Class 12 Biology Chapter 3 Human Reproduction Quiz 6 (60 MCQs)

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1. What is the role of the placenta during pregnancy?
2. What are the chemicals that coordinate and control the production of sperm and egg cells?
3. What does A.R.T stand for?
4. What is a morula?
5. A fertilised egg in the female human body attaches itself to the wall of the female's vagina.
6. Which cells of the ovary are involved in the synthesis of estrogen?I. Theca interna cells.II. Granulosa cells.III. Interstitial cells.IV. Theca externa cells.
7. What does the placenta do?
8. Tiny male cell that unites with the female ovum to form a fertilized egg or zygote.
9. Corpus spongiosum muscle is present in
10. Which of the following is immortal?
11. One function of the male reproductive system in mammals is to
12. Unlike huamns who uksually have one baby at a time, some organisms like turtles lay hundred of eggs. Why is this?
13. In the monthly cycle, which event comes first?
14. What does the zygote form during early development?
15. The coiled tubules inside the compartments of the testis
16. Which hormone does not directly regulate human reproductive cycles?
17. Fertilization takes place where in the females body?
18. A fertilised egg cell becomes an embryo by:
19. What is the ploidy of secondary oocyte?
20. What process in the female reproductive system allows blood and tissue from the uterus to break down and pass through the vagina monthly?
21. What number of chromosomes are handed down by a egg cell?
22. What is the name of the female reproductive organ in the human reproductive system where fertilization typically occurs?
23. What connects the fetus to the placenta?
24. In plants, pollination happens before fertilisation.
25. How many cells are produced with mitosis?
26. What is the main function of the petals in a flower?
27. Which represent a condition of highly reduced motility?
28. The male sex hormone testosterone is secreted from .....
29. Sperm is produced in the
30. Which of these is NOT a secondary characteristic of male puberty?
31. Human reproduction occurs because .....
32. Several hormones like hCG, hPL, estrogen, progesterone are produced by
33. What is the scrotum?
34. The treatment for gonorrhoea is
35. Which statement is true about epididymis?
36. How many days is a typical menstrual cycle?
37. The finger-like projections form the trophoblast
38. The structure that makes nutrients most directly available to a human embryo is the
39. Sperm are created through meiosis in an area of the testes called the seminiferous tubules. Through which structure do the sperm travel to exit the testes?
40. Identify the following body changes during puberty:Widening of hips
41. Both human and plant sexual reproduction go through the process of fertilisation.
42. How are called the fisical differences between men and women.
43. The seminal vesicle is a yellowish fluid that contains .....
44. What is used to regulate many bodily processes?
45. Which statement about maternal and fetal blood in the placenta is accurate?
46. The eggs are produced in
47. The human male reproductive system isadapted for the production of
48. Which of the following hormones is not secreted by human placenta?
49. Exponential growth occurs when there is ..... ?
50. Sex chromosomes and reproductive organs define
51. Which accessory genital gland occurs only in mammalian male?
52. Which is correct about morula?
53. Which term describes the narrow opening of the uterus that extends into the vagina?
54. Joining of a sperm and egg cell
55. Which organ of the female reproductive system releases egg cells and produces the estrogen and progesterone?
56. Where is the egg fertilised?
57. Cells that provide nourishment to the developing spermatozoa.
58. Which of these is a possible side effect of birth control pills?
59. The arrow labeled X represents the process of
60. Identify the following stages of adolescence:Selection of partner based on individual choice rather than on what others think
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