This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 44 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 44 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Soon after fertilisation, many cell divisions lead to the formation of a solid clump of cells. What is this lump of cells called? A) Morula. B) Blastocyst. C) Zyogote. D) Embryo. Show Answer Correct Answer: A) Morula. 2. Chimpanzees have 48 chromosomes in each normal body cell. How many chromosomes does a chimpanzee gamete contain? A) 23. B) 24. C) 46. D) 48. Show Answer Correct Answer: B) 24. 3. A "period" is the breaking down and shedding of the endometrium (uterine lining). The technical name for this is called: A) Ovulation. B) Menstruation. C) Fertilization. D) Puberty. Show Answer Correct Answer: B) Menstruation. 4. Which of the following is not a birth control method? A) Condom. B) Pill. C) Diaphragm. D) Morning after pill. Show Answer Correct Answer: D) Morning after pill. 5. Name the narrow passage connecting the uterus and vagina in females. A) Urethra. B) Oviduct. C) Cervix. D) Vulva. Show Answer Correct Answer: C) Cervix. 6. Find the wrongly matched pair from the following: A) Bleeding-fall in oestrogen and progesterone. B) Follicular phase-rise in oestrogen. C) Luteal phase-rise in FSH level. D) Ovulatory phase-LH surge. Show Answer Correct Answer: C) Luteal phase-rise in FSH level. 7. In 28 day human ovarian cycle, ovulation occurs on A) Day 1. B) Day 5. C) Day 14. D) Day 28. Show Answer Correct Answer: C) Day 14. 8. Which hormone is responsible for maintaining the uterus lining A) Progesterone. B) Oestrogen. C) LH. D) Testosterone. Show Answer Correct Answer: A) Progesterone. 9. Humans all go through puberty at the same time A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 10. The membrane around Graafian Follicle is known as A) Zona Fasciculata. B) Zona externa. C) Zona Pellucida. D) Zona Reticularis. Show Answer Correct Answer: C) Zona Pellucida. 11. Low level estrogen inhibit the release of FSH and LH by A) Hypothalamus. B) Ovary. C) Anterior pituitary. D) Corpus luteum. Show Answer Correct Answer: C) Anterior pituitary. 12. In the male reproduction system, the testes produces sperm. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 13. What are the initial phases of embryonic development? A) Fertilisation, implantation, cleavage. B) Implantation, fertilisation, cleavage. C) Fertilisation, cleavage, implantation. D) None of the above. Show Answer Correct Answer: C) Fertilisation, cleavage, implantation. 14. The start of puberty is triggered by: A) Menstruation. B) Sex hormones. C) Ovulation. D) Antibodies. Show Answer Correct Answer: B) Sex hormones. 15. The layer of cells surrounding the oocyte A) Corona radiate. B) Cumulus oophorus. C) Zona pellucida. D) Vitelline cells. Show Answer Correct Answer: A) Corona radiate. 16. Which of the following statement about twins is incorrect A) Identical twins originated from the same fertilised egg. B) The appearance of non-identical twins may also have variation. C) Half of genes identical twins come from the father, and half are from their mother. D) Non identical twins must be one male and one female. Show Answer Correct Answer: D) Non identical twins must be one male and one female. 17. Reproductive organs becoming functional during puberty, meaning that A) Your body grows. B) You can reproduce. C) You have secondary sexual characteristics. D) You can drive. Show Answer Correct Answer: B) You can reproduce. 18. A reproductive system is represented in the diagram below. Which structure is correctly paired with its reproductive function? A) A) A-pathway of gametes. B) B) B-synthesis of progesterone. C) C) C-production of sperm. D) None of the above. Show Answer Correct Answer: C) C) C-production of sperm. 19. Which part of the male anatomy DOES NOT help produce a part of the final seminal fluid used in reproduction? A) Testicles. B) Seminal Vesicles. C) Prostate Gland. D) Urethra. Show Answer Correct Answer: D) Urethra. 20. THE ACCESSORY DUCT WHICH STORES SPERMATOZOA TEMPORARILY IS A) RETE TESTIS. B) VASA EFFERENTIA. C) VAS DIFERENS. D) EPIDIDYMIS. Show Answer Correct Answer: D) EPIDIDYMIS. 21. The lining of the uterus is shed during menstrual period because A) The woman is ovulating. B) The levels of estrogen and progesterone drop. C) FSH is liberated. D) The woman is pregnant. Show Answer Correct Answer: B) The levels of estrogen and progesterone drop. 22. This is the term given for the release of a mature ovum once a month: A) Mensturation. B) Period. C) Ovulation. D) Conception. Show Answer Correct Answer: C) Ovulation. 23. What is it called when sperm is pushed out of the penis? A) Urinating. B) Ovulation. C) Ejaculation. D) Germination. Show Answer Correct Answer: C) Ejaculation. 24. What is the purpose of the amniotic sac during pregnancy? A) To regulate the mother's hormones. B) To protect and cushion the developing fetus. C) To provide food and nutrients to the fetus. D) To help the fetus breathe. Show Answer Correct Answer: B) To protect and cushion the developing fetus. 25. Activation of digestive enzymes in this structure allow sperm to burrow through the corona radiata. A) Acrosome. B) Flagella. C) Head. D) Midpiece. Show Answer Correct Answer: A) Acrosome. ← PreviousNext →Related 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 7Class 12 Biology Chapter 3 Human Reproduction Quiz 8Class 12 Biology Chapter 3 Human Reproduction Quiz 9Class 12 Biology Chapter 3 Human Reproduction Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books