This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 38 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 38 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The female sex cell is called ..... A) Ovum. B) Embryo. C) Foetus. D) Gland. Show Answer Correct Answer: A) Ovum. 2. Withdrawl of which hormone is the immediate cause of menstruation? A) Estrogen. B) FSH. C) Progesterone. D) LH. Show Answer Correct Answer: C) Progesterone. 3. Pregnancy occurs at the moment of conception. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 4. Which nutrient can help the foetus to grow healthy bones? A) Carbohydrate. B) Calcium. C) Magnesium. D) Vitamin C. Show Answer Correct Answer: B) Calcium. 5. In oogenesis when a diploid cell in the ovary undergoes meiosis, how many ova result? A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: A) 1. 6. What the unborn baby is called from week 9 of pregnancy until birth. A) Zygote. B) Embryo. C) Fetus. D) None of the above. Show Answer Correct Answer: C) Fetus. 7. Which of the following correctly describes sexual reproduction in humans? A) Fertilisation of the egg takes place inside the male's body. B) Many eggs are fertilised by one sperm. C) The fertilised egg develops in the stomach. D) Fertilisation occurs when a sperm and an egg fuse. Show Answer Correct Answer: D) Fertilisation occurs when a sperm and an egg fuse. 8. Which part of the female reproductive system is the opening of the womb? A) Vagina. B) Cervix. C) Fallopian tube. D) Ovaries. Show Answer Correct Answer: B) Cervix. 9. The small cells with very less cytoplasm produced during oogenesis A) Oocyte. B) Polar body. C) Oogonium. D) Follicle. Show Answer Correct Answer: B) Polar body. 10. If secondary spermatocytes have 20 chromosomes then how many chromosomes present in a spermatogonium cell ..... A) 20. B) 10. C) 30. D) 40. Show Answer Correct Answer: D) 40. 11. Which statement describes the reproductive system of a human male? A) It releases sperm that can be used only in external fertilization. B) It synthesizes progesterone that regulates sperm formation. C) It produces gametes that transport food for embryo formation. D) It shares some structures with the excretory system. Show Answer Correct Answer: D) It shares some structures with the excretory system. 12. Which of the following is NOT true about oogenesis? A) It has 2 steps. B) Step 2 is about 28 days. C) A new ovum is produced every time. D) Step 2 is called ovulation. Show Answer Correct Answer: C) A new ovum is produced every time. 13. Function of hCG is to A) Maintain the corpus luteum during the early stages of pregnancy. B) Promote mammary gland growth in preparation for lactation. C) Prepare for childbirth. D) None of the above. Show Answer Correct Answer: A) Maintain the corpus luteum during the early stages of pregnancy. 14. What is the structure in the womb that filters nutrients and oxygen between mother and baby? A) Placenta. B) Umbilical cord. C) Amniotic fluid. D) Amniotic sac. Show Answer Correct Answer: A) Placenta. 15. During pregnancy, the first couple of weeks are the most important because ..... A) The entire baby is made in the first couple of weeks. B) Genes are not working strong. C) Organs are being formed. D) None of the above. Show Answer Correct Answer: C) Organs are being formed. 16. Each testis has about ..... compartments called ..... A) 3, seminiferous tubules. B) 250, seminiferous tubules. C) 250, testicular lobules. D) 3, testicular lobules. Show Answer Correct Answer: C) 250, testicular lobules. 17. Each testis has how many testicular tubules? A) 150. B) 250. C) 300. D) 200. Show Answer Correct Answer: B) 250. 18. A degenerated follicle A) Corpus albicans. B) Atretic follicle. C) Corpus luteum. D) Graffian follicle. Show Answer Correct Answer: B) Atretic follicle. 19. Which of the following best describes the fertile period during a menstrual cycle? A) Time during which a woman can definately become pregnant. B) Time during which a woman can become pregnant. C) Time during which a woman is most likely to become pregnant. D) Time during which a woman is unlikely to become pregnant. Show Answer Correct Answer: C) Time during which a woman is most likely to become pregnant. 20. When does the reproductive system among humans become active? A) When an individual grows taller. B) When an individual reaches high school. C) When an individual reaches college. D) When an individual reaches puberty. Show Answer Correct Answer: D) When an individual reaches puberty. 21. Which of the following gland do not produce seminal fluid? A) Seminal vesicles. B) Pituitary gland. C) Cowper gland. D) Prostate gland. Show Answer Correct Answer: B) Pituitary gland. 22. The most important hormone in initiating and maintaining lactation after birth is ..... A) Oestrogen. B) FSH. C) Prolactin. D) Oxytocin. Show Answer Correct Answer: C) Prolactin. 23. At the end of which stage of development does the growing baby have all of its major organs that will continue to develop through the rest of gestation? A) Zygote. B) Embryo. C) Fetus. D) None of the above. Show Answer Correct Answer: B) Embryo. 24. IT IS THE UNION OF AN EGG NUCLEUS WITH THE SPERM NUCLEUS A) FERTILIZATION. B) OVULATION. C) MENSTRUATION. D) PARTUITION. Show Answer Correct Answer: A) FERTILIZATION. 25. In spermatogenesis the phase of maturation involves: A) The growth of spermatogonia into primary spermatocyte. B) The formation of spermatogonia from gonocytes through mitosis. C) The formation of spermatids from primary spermatocytes through meiosis. D) The formation of oogonia from the spermatocytes through meiosis. Show Answer Correct Answer: C) The formation of spermatids from primary spermatocytes through meiosis. ← 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