This quiz works best with JavaScript enabled. Home > Class 12 > 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 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Fine adjustment knob of a microscope is used to A) Magnify the object. B) Adjust the focus initially. C) Reflect light onto the side. D) Adjust the focus finely. Show Answer Correct Answer: D) Adjust the focus finely. 2. FERTILISATION TAKES PLACE IN WHICH PART OF OVIDUCT? A) INFUNDIBULUM. B) AMPULLA. C) FIMBRIE. D) AMPULLARY-ISTHMUS JUNCTION. Show Answer Correct Answer: D) AMPULLARY-ISTHMUS JUNCTION. 3. Which hormone is produced by the hypothalamus? A) FSH. B) LH. C) GnRH. D) None of the above. Show Answer Correct Answer: C) GnRH. 4. Which one of the following statements is false in respect of viability of mammalian sperm? (2012) A) Sperm is viable for only upto 24 hours. B) Survival of sperm depends on the pH of the medium and is more active in alkaline medium. C) Viability of sperm is determined by its motility. D) Sperms must be concentrated in a thick suspension. Show Answer Correct Answer: A) Sperm is viable for only upto 24 hours. 5. What is the role of the bladder? A) To create and store urine. B) To store urine. C) To store semen or ova. D) To carry sperm to the fallopian tubes?. Show Answer Correct Answer: B) To store urine. 6. Which of the following consists of haploid number of chromosome? A) Spermatogonia. B) Secondary spermatocyte. C) Primary spermatocyte. D) Sertoli cell. Show Answer Correct Answer: B) Secondary spermatocyte. 7. Spermatogonia develop through dividsion A) Amitosis. B) Mitosis. C) Miosis-1. D) Miosis-2. Show Answer Correct Answer: B) Mitosis. 8. One function of the placenta in a human is to A) Permit passage of nutrients and oxygen from the motherto the fetus. B) Allow for mixing of maternal blood with fetal blood. C) Act as the heart of the fetus, pumping blood until thefetus is born. D) Surround the embryo and protect it from shock. Show Answer Correct Answer: A) Permit passage of nutrients and oxygen from the motherto the fetus. 9. No new follicles develop in the luteal phase of the menstrual cycle because: A) Both FSH and LH levels are low in the luteal phase. B) Follicles do not remain in the ovary after ovulation. C) FSH levels are high in the luteal phase. D) LH levels are high in the luteal phase. Show Answer Correct Answer: A) Both FSH and LH levels are low in the luteal phase. 10. Which cells are present on the inside wall of the seminiferous tubule? A) Spermagonia. B) Spermatozoa. C) Spermatogonia. D) Sertoli cells. Show Answer Correct Answer: C) Spermatogonia. 11. The main function of the placenta is to: A) Allow direct exchange of blood between the mother and fetus for nutrition. B) Facilitate gas and nutrient exchange between the fetus and mother. C) Support the weight of the developing fetus in the uterus. D) Store gases and nutrients for later delivery to the fetus. Show Answer Correct Answer: B) Facilitate gas and nutrient exchange between the fetus and mother. 12. The zygote will develop into ..... A) SPERM. B) FETUS. C) SEED. D) BABY. Show Answer Correct Answer: B) FETUS. 13. What are gonads? A) Gonads are sex organs that produce gametes. B) Gonads are gorillas found in Tasmania. C) Gonads are sex cells. D) Gonads are fusion of gametes. Show Answer Correct Answer: A) Gonads are sex organs that produce gametes. 14. Relaxin is produced by A) Ovary. B) Testis. C) Adrenal. D) Pituatry gland. Show Answer Correct Answer: A) Ovary. 15. Sertoli cells are found in A) Ovaries and secrete progesterone. B) Adrenal cortex and secrete adrenaline. C) Seminiferous tubeless and provide nutrition to germ cells. D) Pancreas and secrete cholecystokinin. Show Answer Correct Answer: C) Seminiferous tubeless and provide nutrition to germ cells. 16. Graafian follicle rupture and release secondary oocyte from ovaryThis process occur due to A) High level of estrogen. B) High level progesterone. C) High level LH. D) High level FSH. Show Answer Correct Answer: C) High level LH. 17. Which of the following statements about the zygote formed after fertilization is correct? A) It carries one set of chromosomes. B) It carries two sets of chromosomes. C) It will divide two times to form an embryo. D) It moves to the vagina directly for further development. Show Answer Correct Answer: B) It carries two sets of chromosomes. 18. The process of formation of ovum A) Oogenesis. B) Ovulation. C) Oocyte. D) Folliculogenesis. Show Answer Correct Answer: A) Oogenesis. 19. Name the cell that supplies nutrients to spermatids while they develop into spermatozoa A) Sertoli cell. B) Leydig cell. C) Seminiferous cell. D) Germinal epithelium cell. E) Prostate cell. Show Answer Correct Answer: A) Sertoli cell. 20. Role of leydig cells of testis is A) Provide nourishment to sperms. B) Provide motility to sperms. C) Bring about maturation of sperms. D) Synthesis of androgens. Show Answer Correct Answer: D) Synthesis of androgens. 21. The test-tube Baby Programme employs which one of the following techniques: A) Intra cytoplasmic sperm injection (ICSI). B) Intra uterine insemination(IUI). C) Gamete intra fallopian transfer (GIFT). D) Zygote intra fallopian transfer (ZIFT). Show Answer Correct Answer: D) Zygote intra fallopian transfer (ZIFT). 22. Humans are called ..... as they give birth to young ones. A) Oviparous. B) Viviparous. C) All the above. D) None of the above. Show Answer Correct Answer: B) Viviparous. 23. What happens to stop more than one sperm fertilising an ovum? A) The cortical reaction. B) The acrosome reaction. C) Capacitation. D) Polyspermy. Show Answer Correct Answer: A) The cortical reaction. 24. The embryo's skin and nervous system form from which germ layer? A) Mesoderm. B) Ectoderm. C) Endoderm. D) None of the above. Show Answer Correct Answer: B) Ectoderm. 25. What are the three stages of birth A) Fertilisation, ovulation and birth. B) Ovulation fertilisation and contractions. C) Labour, Birth and the afterbirth. D) Labour birth and taking the baby home. Show Answer Correct Answer: C) Labour, Birth and the afterbirth. ← 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 8Class 12 Biology Chapter 3 Human Reproduction Quiz 9Class 12 Biology Chapter 3 Human Reproduction Quiz 10Class 12 Biology Chapter 3 Human Reproduction Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books