This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 29 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 29 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Prepration of sperm before penetration of ovum is A) Spermiation. B) Cortical reaction. C) Spermiogenesis. D) Capacitation. Show Answer Correct Answer: D) Capacitation. 2. Budding, vegetative propagation, regeneration, and binary fission are all types of A) Sexual reproduction. B) Asexual reproduction. C) All the above. D) None of the above. Show Answer Correct Answer: B) Asexual reproduction. 3. People with an extra copy of chromosome 21 have a disorder called A) Down syndrome. B) Hemophilia. C) Colorblindness. D) Amniocentesis. Show Answer Correct Answer: A) Down syndrome. 4. What is meant by the fertile period? A) The lining of the uterus breaks down and is released through the vagina. B) The time of the menstrual cycle when fertilisation and pregnancy are more likely to occur. C) The time when the human body becomes sexually mature. D) The time of the menstrual cycle where the uterus sheds its lining. Show Answer Correct Answer: B) The time of the menstrual cycle when fertilisation and pregnancy are more likely to occur. 5. ..... induces rupture of Graafian follicle and thereby the release of ovum (ovulation) A) Estrogen. B) Progesterone. C) FSH surge. D) LH surge. Show Answer Correct Answer: D) LH surge. 6. How many sperm are ejaculated from the penis? A) One. B) Hundreds. C) Thousands. D) Millions. Show Answer Correct Answer: D) Millions. 7. Most girls experience puberty between 10 and 16 A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. Identify the following body changes during puberty:Deepening of voice A) Boys ONLY. B) BOTH boys and Girls. C) Girls ONLY. D) None of the above. Show Answer Correct Answer: A) Boys ONLY. 9. Acessory secondary sexual character of a female is promoted by A) Androgens. B) Progesterone. C) Estrogens. D) Testosterone. Show Answer Correct Answer: C) Estrogens. 10. Where in a female are ova (egg cells) produced? A) Cervix. B) Uterus. C) Ovaries. D) Oviduct. Show Answer Correct Answer: C) Ovaries. 11. A human can produce both female and male reproductive cells like some flowers. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 12. What name is given to the cells that attach to Sertoli cells? A) Secondary spermatocytes. B) Spermatogonia. C) Primary spermatocytes. D) Spermatids. Show Answer Correct Answer: D) Spermatids. 13. When the egg and sperm join together, it is known as A) Intercourse. B) Ovulation. C) Fertilization. D) Mitosis. Show Answer Correct Answer: C) Fertilization. 14. If for some reason, the vasa efferentia in the human reproductive system gets blocked, the gametes will not be transported from A) Testes to epididymis. B) Epididymis to vas deferens. C) Ovary to uterus. D) Vagina to uterus. Show Answer Correct Answer: A) Testes to epididymis. 15. The funnel shaped part of oviduct A) Infundibulum. B) Fimbriae. C) Uterus. D) Mons pubis. Show Answer Correct Answer: A) Infundibulum. 16. How many sperms are formed from a secondary spermatocyte? A) 4. B) 8. C) 2. D) 1. Show Answer Correct Answer: C) 2. 17. Which of the following is the correct pathway of milk release in mammary gland? A) Alveoli-duct-tubules-ampulla-lactiferous duct-nipple. B) Alveoli-tubules-duct-ampulla-lactiferous duct-nipple. C) All the above. D) None of the above. Show Answer Correct Answer: B) Alveoli-tubules-duct-ampulla-lactiferous duct-nipple. 18. What is the role of the placenta? A) An organ that develops in the uterus during pregnancy, providing nutrients and oxygen to the growing fetus and removing waste. B) A structure that connects the fetus to the mother's blood supply without any exchange of materials. C) A temporary organ that only serves to protect the fetus from infections during pregnancy. D) A gland that produces hormones to regulate the mother's metabolism during pregnancy. Show Answer Correct Answer: A) An organ that develops in the uterus during pregnancy, providing nutrients and oxygen to the growing fetus and removing waste. 19. The male gametes is called ..... A) Ovule. B) Ova. C) Sperm cells. D) Ovary. Show Answer Correct Answer: C) Sperm cells. 20. Which of the following is an example of a male fertility problem? A) High sperm count. B) Unusual ovulation. C) Blocked oviducts. D) Low sperm count. Show Answer Correct Answer: D) Low sperm count. 21. What organ produces sperm? A) Brain. B) Testes. C) Ovaries. D) Lungs. Show Answer Correct Answer: B) Testes. 22. Termination of gastrulatin is marked by A) Closure of primitive gut. B) Obliteration of archenteron. C) Obliteration of blastocoel. D) Closure of neural tube. Show Answer Correct Answer: C) Obliteration of blastocoel. 23. Identify the incorrect statement on 'inhibin' (NEET 2016) A) Is produced by granulosa cells in ovary & inhibits the secretion of LH. B) Is produced by nurse cells in testes & inhibits the secretion of LH. C) Inhibits the secretion of LH, FSH & Prolactin. D) Is produced by granulosa cells in the ovary & inhibits the secretion of FSH. Show Answer Correct Answer: D) Is produced by granulosa cells in the ovary & inhibits the secretion of FSH. 24. Fertilization in humans is practically feasible only if A) The ovum and sperms are transported simultaneously to ampullary isthemic junction of the fallopian tube. B) The ovum and sperms are transported simultaneously to ampullary isthmic junction of the cervix. C) The sperms are transported into cervix within 48 hrs of release of ovum in uterus. D) The sperms are transported into vagina just after the release of ovum in fallopian tube. Show Answer Correct Answer: A) The ovum and sperms are transported simultaneously to ampullary isthemic junction of the fallopian tube. 25. Through what process does a spermatid become a functioning spermatozoan? A) Mitosis. B) Differentiation. C) Fertilization. D) Meiosis. Show Answer Correct Answer: B) Differentiation. ← 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