This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. For a human zygote to become an embryo, it must undergo A) Fertilization. B) Mitosis. C) Recombination. D) Meiosis. Show Answer Correct Answer: B) Mitosis. 2. Assertion:Sertoli cells are present inside seminiferous tubules. Reason:Sertoli cells secrete androgens. A) Both A and R are true and R is the correct explanation of A. B) Both A and R are true but R is not the correct explanation of A. C) A is true but R is false. D) A is false but R is true. Show Answer Correct Answer: C) A is true but R is false. 3. Fertilisation is when an egg cell nucleus fuses with: A) Another egg cell nucleus. B) A sperm cell nucleus. C) A body cell nucleus. D) Root hair cells. Show Answer Correct Answer: B) A sperm cell nucleus. 4. WHICH PART OF THE SPERM HELPS IN RUPTURE OF ZONA PELLUCIDA LAYER OF OVUM? A) MIDDLE PIECE. B) TAIL. C) NUCLEUS. D) ACROSOME. Show Answer Correct Answer: D) ACROSOME. 5. Sperms are produced in: A) Prostate glands. B) Vasdeferens. C) Seminiferous tubule. D) Interstitial cells. Show Answer Correct Answer: C) Seminiferous tubule. 6. The female sex cell is the A) Egg cell. B) Fetus. C) Sperm cell. D) Zygote. Show Answer Correct Answer: A) Egg cell. 7. Cleavage in the fertilized egg of humans A) Start in uterus. B) Is meroblastic. C) Starts when egg is in fallopian tube. D) Is discoidal. Show Answer Correct Answer: C) Starts when egg is in fallopian tube. 8. Urethral meatus is ..... A) Part of internal genetilia. B) Endocrine gland. C) External muscle. D) External opening. Show Answer Correct Answer: D) External opening. 9. In the correct chronological order, the three phases of the ovarian cycle are A) Menstrual, ovulation, luteal. B) Follicular, luteal, secretory. C) Menstrual, proliferative, secretory. D) Follicular, ovulation, luteal. Show Answer Correct Answer: D) Follicular, ovulation, luteal. 10. Select the correct option describing gonadotropin activity in a normal pregnant female: A) High level of FSH and LH stimulates the thickening of endometrium. B) High level of FSH and LH facilitate implantation of the embryo. C) High level of hCG stimulates the synthesis of estrogen and progesterone. D) High level of hCG stimulates the thickening of endometrium. Show Answer Correct Answer: C) High level of hCG stimulates the synthesis of estrogen and progesterone. 11. Preparation of sperm before penetration of ovum is A) Spermiogenesis. B) Capacitation. C) Cortical reaction. D) Spermiation. Show Answer Correct Answer: B) Capacitation. 12. Human spermatozoa have to spend several hours in the female genital tract before they can fertilize an oocyte. During this time, they are activated in a process called A) Capacitation. B) Ejaculation. C) Conception. D) Copulation. Show Answer Correct Answer: A) Capacitation. 13. The persistence of corpus luteum during pregnancy is due to presence of harmone A) LH. B) CHRONIONIC GONADOTROPIN. C) FSH. D) TESTOSTERONE. Show Answer Correct Answer: B) CHRONIONIC GONADOTROPIN. 14. After the follicle has released the egg cell, what does it become? A) Corpas luteum. B) Corpus luteum. C) Corpas lutuem. D) Corpus lutuem. Show Answer Correct Answer: B) Corpus luteum. 15. In human females meiosis-2 is not completed untill A) Fertlization. B) Uterine implantation. C) Birth. D) Puberty. Show Answer Correct Answer: A) Fertlization. 16. What does the IVF consist of? A) Injection semen in the uterus. B) Inject a sperm cell in a egg. C) All the above. D) None of the above. Show Answer Correct Answer: B) Inject a sperm cell in a egg. 17. Can the human embryo obtain nutrients and remove waste substances as the human adults do? A) Yes. B) No. C) All the above. D) None of the above. Show Answer Correct Answer: B) No. 18. Transfer of sperms from the male reproductive tract to female reproductive tract by penis is called ..... A) Insemination. B) Spermiation. C) All the above. D) None of the above. Show Answer Correct Answer: A) Insemination. 19. The genetic material in a zygote results from the combination of the genetic materials ..... A) Of the sperm and the egg. B) Of the bacteria. C) Both answers are correct. D) No answer is correct. Show Answer Correct Answer: A) Of the sperm and the egg. 20. The joining of a male sperm cell and a female egg cell to form a human life. A) Reproduction. B) Menstruation. C) Ovulation. D) Fertilization. Show Answer Correct Answer: D) Fertilization. 21. The immature male germ cell undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above. A) Spermatogonia have 46 .chromosomes and always undergo meiotic cell division. B) Primary spermatocytes divide by mitotic cell division. C) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division. D) Spermatozoa are transformed into spermatids. E) Idk, bhaghwan gane. Show Answer Correct Answer: C) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division. 22. Monthly occurence in which an egg is released into the uterus to be prepared for fertilized. If not fertilized, the lining of uterus is shed A) Estrogen. B) Menstrual Cycle. C) Uterus. D) Vagina. Show Answer Correct Answer: B) Menstrual Cycle. 23. What is the function of the umbilical cord? A) To regulate the menstrual cycle. B) To produce ova. C) To produce sperm. D) To connect the foetus to the placenta. Show Answer Correct Answer: D) To connect the foetus to the placenta. 24. An endocrine gland does which of the following? A) Secretes substances produced into ducts (tubes) for transport. B) Secretes substances produced straight into the blood for transport. C) Secretes no substances at all. D) None of the above. Show Answer Correct Answer: B) Secretes substances produced straight into the blood for transport. 25. During puberty, girls will begin to have 'periods' which is called ..... A) Natural. B) Blood. C) Menstruation. D) None of the above. Show Answer Correct Answer: C) Menstruation. ← 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