This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 3 Human Reproduction – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 7 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. ..... helps to protect the baby from knocks and bumps. A) Umbilical cord. B) Uterus. C) Placenta. D) Amniotic fluid. Show Answer Correct Answer: D) Amniotic fluid. 2. The fallopian tubes connect A) The ovaries to the uterus. B) The uterus to the vagina. C) The ovaries to the vagina. D) None of the above. Show Answer Correct Answer: A) The ovaries to the uterus. 3. Meiosis and fertilization are important processes because they may most immediately result in A) Many body cells. B) Genetic variation. C) Natural selection. D) Immune responses. Show Answer Correct Answer: B) Genetic variation. 4. Spermatogonia undergo meiotic cell division to produce A) Secondary Spermatocytes. B) Spermatids. C) Spermatozoa. D) Primary Spermatocytes. Show Answer Correct Answer: D) Primary Spermatocytes. 5. How many sperm cells can enter an egg? A) One. B) As many as possible. C) Three. D) Two. Show Answer Correct Answer: A) One. 6. The cells that nourish the developing male gamete A) Leydig. B) Graafian follicle. C) Sertoli. D) Germ cells. Show Answer Correct Answer: C) Sertoli. 7. Where does gestation occur? A) Uterus. B) Testis. C) Umbilical cord. D) Placenta. Show Answer Correct Answer: A) Uterus. 8. What is the function of the FSH? A) To stimulate the development of egg cells in the ovaries. B) To stimulate the production of testosterone. C) To stimulate the production of estrogen. D) To stimulate the production of progesterone. Show Answer Correct Answer: A) To stimulate the development of egg cells in the ovaries. 9. Muscular contractions and other events that lead up to childbirth are called A) Pregnancy. B) Gestation. C) Labor. D) Delivery. Show Answer Correct Answer: C) Labor. 10. Do humans produce sexually (Two individuals) or asexually (one individual)? A) Sexually. B) Asexually. C) All the above. D) None of the above. Show Answer Correct Answer: A) Sexually. 11. In oogenesis, a diploid cell produce ..... ovum/ova A) 4. B) 1. C) 2. D) 3. Show Answer Correct Answer: B) 1. 12. A baby develops in this organ. A) Uterus. B) Ovary. C) Fallopian tube. D) None of the above. Show Answer Correct Answer: A) Uterus. 13. What is the function of the ovaries? A) To act as a passageway for sperm. B) To fertilize the ovum (eggs). C) To produce the ovum (eggs). D) To protect the fertilized ovum (eggs). Show Answer Correct Answer: C) To produce the ovum (eggs). 14. What is the function of the human female reproductive system? A) Produce ovum (egg cell). B) Produce ovum, protect offspring before and after birth. C) Produce ovum, protect and nourish offspring before and after birth. D) Produce ovum, nourish offspring before and after birth. Show Answer Correct Answer: C) Produce ovum, protect and nourish offspring before and after birth. 15. A woman's unsafe period is the day near or during ..... A) Menstruation. B) Sexual intercourse. C) Ovulation. D) Fertilization. Show Answer Correct Answer: C) Ovulation. 16. The main function of mammalian corpus luteum is to produce: A) Progesterone. B) Relaxin only. C) Human chorionic gonadotropin. D) Estrogen only. Show Answer Correct Answer: A) Progesterone. 17. What is one difference between asexual and sexual reproduction? A) Asexual (offspring no variation)Sexual (offspring variation). B) Asexual (offspring different from parent)Sexual (offspirng identical to parent). C) Asexual (Slow reproduction)Sexual (Fast reproduction). D) Asexual (more complicated)Sexual (less complicated). Show Answer Correct Answer: A) Asexual (offspring no variation)Sexual (offspring variation). 18. German measles is a disease that can harm an embryo if the mother is infected in the early stages of pregnancy because the virus that causes German measles is able to A) Infect the eggs. B) Pass across the placenta. C) Be transported to the embryo in red blood cells. D) Be absorbed by the embryo from the mother's milk. Show Answer Correct Answer: B) Pass across the placenta. 19. The number of spermatozoa produced will be A) Four times the number of spermatids. B) Same as the number of spermatids. C) Double the number of spermatids. D) Half the number of spermatids. Show Answer Correct Answer: B) Same as the number of spermatids. 20. What provides protection for the embryo during development? A) Scrotum. B) Placenta. C) Umbilical cord. D) Amniotic sac. Show Answer Correct Answer: D) Amniotic sac. 21. Implantation takes where in the female body? A) Uterus. B) Stomach. C) Ovary. D) Fallopian Tube. Show Answer Correct Answer: A) Uterus. 22. Progesterone is produced: A) By the pituitary gland. B) In the second half of the cycle. C) To stimulate release of FSH. D) By the Graafian follicle. Show Answer Correct Answer: B) In the second half of the cycle. 23. Which phase of menstrual cycle is also called proliferative phase? A) Luteal. B) Ovulatory. C) Menstruation. D) Follicular. Show Answer Correct Answer: D) Follicular. 24. An egg has ..... to be fertilized. A) 48 hours. B) 24 hours. C) 36 hours. D) 16 hours. Show Answer Correct Answer: B) 24 hours. 25. The developing baby after 2 months A) Fetus. B) Embryo. C) Zygote. D) None of the above. Show Answer Correct Answer: A) Fetus. 26. Secretions from which one of the following are rich in fructose, calcium and some enzymes? A) Male accessory glands. B) Liver. C) Pancreas. D) Salivary glands. Show Answer Correct Answer: A) Male accessory glands. 27. The end of reproductive capacity in the female reproductive system is known as A) Estrogen. B) Menopause. C) Puberty. D) Perimenopause. Show Answer Correct Answer: B) Menopause. 28. Ovulation generally occurs around days: A) 12-14. B) 20-23. C) 1-5. D) 7-9. Show Answer Correct Answer: A) 12-14. 29. Which of the following layers in an antral follicles is a cellular A) Stroma. B) Granulosa. C) Zona pellucida. D) Theca interna. Show Answer Correct Answer: C) Zona pellucida. 30. A fertilized ovum in the female human body attaches itself to the wall of the female's vagina. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 31. Menstrual flow occurs due to lack of- A) FSH. B) Progesterone. C) Vasopressin. D) Oxytocin. Show Answer Correct Answer: B) Progesterone. 32. Which is a negative feedback mechanism in the menstrual cycle? A) Follicle stimulating hormone inhibits oestrogen. B) Progesterone inhibits oestrogen. C) Oestrogen inhibits luteinizing hormone. D) Oestrogen inhibits follicle stimulating hormone. Show Answer Correct Answer: D) Oestrogen inhibits follicle stimulating hormone. 33. Bartholin's glands are homologous to A) Bulbo-urethral glands. B) Seminal vesicle. C) Prostate gland. D) Glans penis. Show Answer Correct Answer: A) Bulbo-urethral glands. 34. What is meant by contraception? A) A means to promote fertilisation or implantation by natural or artificial methods to encourage pregnancy. B) An inability to produce offspring. C) A means to prevent fertilisation or implantation by natural or artificial methods to avoid pregnancy. D) A mixture of sperm and seminal fluid. Show Answer Correct Answer: C) A means to prevent fertilisation or implantation by natural or artificial methods to avoid pregnancy. 35. The reproductive strategy where the individuals are genetically identical to the parent. A) Sexual. B) Copulation. C) Asexual. D) Separation. Show Answer Correct Answer: C) Asexual. 36. The surge in the hormone during ovulation is A) GH. B) GnRH. C) LH. D) FSH. Show Answer Correct Answer: C) LH. 37. The epididymis is A) Organ that releases an egg cell. B) Structure that makes sperm. C) The storage organ for sperm. D) Organ that secretes seminal fluid. Show Answer Correct Answer: C) The storage organ for sperm. 38. What is the role of oestrogen? A) To break down uterus lining. B) Repair of uterus lining. C) Ovulation. D) Maintaining uterus lining. Show Answer Correct Answer: B) Repair of uterus lining. 39. Which of the following are the male gametes? A) Ova. B) Spermatozoa. C) Testes. D) Ovaries. Show Answer Correct Answer: B) Spermatozoa. 40. The lining of endometrium regenerates during A) Luteal Phase. B) Menstrual Phase. C) Follicular Phase. D) Ovulation. Show Answer Correct Answer: C) Follicular Phase. 41. True or False:The fertilized egg begins to divide while still in the oviduct. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 42. What is the name of the part which is the birthing canal? A) Ovi Duct. B) Cervix. C) Ovary. D) Vagina. E) Uterus. Show Answer Correct Answer: D) Vagina. 43. Where do you find spermatogonia? A) In the epididymis. B) Attached to Leydig cells. C) Attached to the Sertoli cells. D) Attached to the germinal epitheliium of the seminiferous tubule. Show Answer Correct Answer: D) Attached to the germinal epitheliium of the seminiferous tubule. 44. Which day of the menstrual cycle does ovulation take place? A) 12. B) 14. C) 28. D) 1-5. Show Answer Correct Answer: B) 14. 45. Which facts about the uterus (in human females) is true? A) Single. B) Also called womb. C) Inverted pear shape. D) All of these. Show Answer Correct Answer: D) All of these. 46. Both human and plant sexual reproduction go through the processes of pollination and fertilisation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 47. Which is a positive feedback mechanism in the menstrual cycle? A) Follicle stimulating hormone stimulates oestrogen. B) High oestrogen levels stimulate LH and FSH. C) Oestrogen stimulates progesterone. D) High FSH stimulates oestrogen. Show Answer Correct Answer: B) High oestrogen levels stimulate LH and FSH. 48. Which two hormones are most closely associated with thickening of the uterine lining in the human female during the menstrual cycle? A) FSH & Testosterone. B) Progesterone & testerone. C) Estrogen & FSH. D) Estrogen and progesterone. Show Answer Correct Answer: D) Estrogen and progesterone. 49. Which of the following events occurring during the ovarian cycle is a result of the negative feedback caused by an increase in oestrogen levels? A) Decreased secretion of follicle-stimulating hormone after the release of the secondary oocyte. B) Decreased production at the end of the secretory phase. C) Increased secretion of gonadotrophin releasing hormone during follicular phase. D) Increased secretion of luteinizing hormone during follicular phase. Show Answer Correct Answer: D) Increased secretion of luteinizing hormone during follicular phase. 50. The inability of sperm cells to move normally could prevent the production of offspring by interfering with A) Fertilization. B) Meiosis. C) Mitosis. D) Differentiation. Show Answer Correct Answer: A) Fertilization. 51. The first divisions of the zygote while it travels through the fallopian tubes is known as A) Endometrial lining. B) Implantation. C) Embryo. D) Cleavage. Show Answer Correct Answer: D) Cleavage. 52. A group of similar cells that work together to do one job. A) Organism. B) Tissue. C) Organelles. D) Organs. Show Answer Correct Answer: B) Tissue. 53. Select the correct option describing gonadotropin acativity in a normal pregnant female A) High level of HCG stimulate the thickening of endometrium. B) High level of FSHand LH stimulate the thickening of endometrium. C) High level of FSH and LH facilitate implantation of embryo. D) High level of HCG stimulate the synthesis of estrogen and progestron. Show Answer Correct Answer: D) High level of HCG stimulate the synthesis of estrogen and progestron. 54. Fertilization of human eggs usually takes place in the A) Fallopian tubes. B) Uterus. C) Ovaries. D) Vagina. Show Answer Correct Answer: A) Fallopian tubes. 55. Which part of the female reproductive system produces the hormone progesterone? A) Fallopian Tube. B) Ovary. C) Uterus lining. D) Cervix. Show Answer Correct Answer: B) Ovary. 56. What is the process by which pollen is transferred from the male reproductive organs to the female reproductive organs in plants? A) Fertilization. B) Photosynthesis. C) Germination. D) Pollination. Show Answer Correct Answer: D) Pollination. 57. This structure forms around the embryo and is filled with fluid that protects the embyro A) Amniotic sac. B) Placenta. C) Yolk. D) None of the above. Show Answer Correct Answer: A) Amniotic sac. 58. Identify the following characteristics of gametogenesis according to its type:Begins with foetus A) Spermatogenesis. B) Oogenesis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Oogenesis. 59. Each seminiferous tubule is lined on its inside by:A. Male germ cellsB. Interstitial cellsC. Leydig cellsD. Sertoli cells A) A, B. B) A, B, C, D. C) A, B, C. D) A, D. Show Answer Correct Answer: D) A, D. 60. The reproductive cell of the mother is called an egg or an ..... A) Ovum. B) Embryo. C) Sperm. D) Fetus. Show Answer Correct Answer: A) Ovum. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 3 Human Reproduction Quiz 1Class 12 Biology Chapter 3 Human Reproduction Quiz 2Class 12 Biology Chapter 3 Human Reproduction Quiz 3Class 12 Biology Chapter 3 Human Reproduction Quiz 4Class 12 Biology Chapter 3 Human Reproduction Quiz 5Class 12 Biology Chapter 3 Human Reproduction Quiz 6Class 12 Biology Chapter 3 Human Reproduction Quiz 8Class 12 Biology Chapter 3 Human Reproduction Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books