This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 42 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which hormone causes male secondary sexual characteristics to develop? A) Oestrogen. B) Progesterone. C) Testosterone. D) LH. Show Answer Correct Answer: C) Testosterone. 2. What is fertilisation process? A) Process involves man and woman. B) A process where the foetus out of the vagina. C) Fusion of sperm and ovum. D) None of the above. Show Answer Correct Answer: C) Fusion of sperm and ovum. 3. In menstrual cycle of 28/29 days, ovum is released during A) Beginning of the cycle. B) Middle of the cycle. C) End of the cycle. D) Any time during the cycle. Show Answer Correct Answer: B) Middle of the cycle. 4. People who feel attracted to both the opposite and the same sex are A) Heterosexual. B) Homosexual. C) Bisexual. D) Asexual. Show Answer Correct Answer: C) Bisexual. 5. In breast, the mammary alveoli open in to the A) Mammary duct. B) Mammary tubule. C) Mammary ampulla. D) Lactiferous duct. Show Answer Correct Answer: B) Mammary tubule. 6. Identify the following stages of adolescence:Still defining comfort with independence/ dependence. A) EARLY adolescence. B) MIDDLE adolescence. C) LATE adolescence. D) None of the above. Show Answer Correct Answer: A) EARLY adolescence. 7. Which of the following is NOT a reason why a sperm fails to reach an egg? A) The sperm swims too fast. B) The environment is too acidic. C) The mucous covering the cervix is too thick. D) The sperm chooses the wrong fallopian tube. Show Answer Correct Answer: A) The sperm swims too fast. 8. Foramen ovale A) Is a shallow depression in the interventricular septum. B) Is a condition in which the heart valves do not completely close. C) Is a connection between the pulmonary trunk and the aorta in the fetus. D) Connects the two atria in the fetal heart. Show Answer Correct Answer: D) Connects the two atria in the fetal heart. 9. Identify the innermost layer of the human eyeball A) Iris. B) Sclera. C) Retina. D) Choroid. Show Answer Correct Answer: C) Retina. 10. If mammalian ovum fails to get fertilised, which one of the following is unlikely? A) Progesterone secretion rapidly declines. B) Estrogen secretion increases. C) Corpus luteum will disintegrate. D) Primary follicle starts developing. Show Answer Correct Answer: B) Estrogen secretion increases. 11. Where sperm cells are created A) Seminal vesicle. B) Testicles. C) Ovaries. D) Prostate gland. Show Answer Correct Answer: B) Testicles. 12. This embryonic hormone maintains progesterone and estrogen secretion by the corpus luteum through the first trimester of pregnancy: A) Luteinising Hormone (LH). B) Follicle Stimulating Hormone (FSH). C) Progesterone. D) Human Chorionic Gonadotropin (HCG). Show Answer Correct Answer: D) Human Chorionic Gonadotropin (HCG). 13. How many oviducts are there in a Female Reproductive System? A) 3. B) 4. C) 2. D) 1. Show Answer Correct Answer: C) 2. 14. Identify the following organisms according to their nature of reproduction:Bacteria A) Asexual. B) Sexual. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual. 15. Primary Spermatocytes contain 46 chromosomes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 16. Which of the following regulates the blood sugar level? A) Pancreas. B) Parathyroid. C) Pituitary. D) Thyroid. Show Answer Correct Answer: A) Pancreas. 17. What is the function of the vagina? A) To serve as the birth canal and the passage for menstrual fluid, connecting the external genitals to the uterus. B) To produce hormones that regulate the menstrual cycle. C) To provide lubrication during sexual intercourse. D) To act as a barrier against infections. Show Answer Correct Answer: A) To serve as the birth canal and the passage for menstrual fluid, connecting the external genitals to the uterus. 18. The pituitary hormone that stimulates meiosis I A) Corticosterone. B) Progesterone. C) Lutenising hormone. D) Follicle Stimulating Hormone. Show Answer Correct Answer: D) Follicle Stimulating Hormone. 19. How are gametes formed? A) Mitosis. B) Meiosis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Meiosis. 20. In amniocentesis, the fluid is taken from- A) Foetal blood. B) Mother's blood. C) Body fluid of mother. D) Fluid surrounding foetus. Show Answer Correct Answer: D) Fluid surrounding foetus. 21. No new follicles develop in the luteal phase of the menstrual cycle because (NEET 2019) A) Follicles do not remain in the ovary after ovulation. B) FSH levels are high in the luteal phase. C) LH levels are high in the luteal phase. D) Both FSH & LH levels are low in the luteal phase. Show Answer Correct Answer: D) Both FSH & LH levels are low in the luteal phase. 22. Which phase is the first day of the menstrual cycle and is the discharge of blood and uterine tissue? A) Menstruation. B) Follicular phase. C) Ovulation. D) Luteal phase. Show Answer Correct Answer: A) Menstruation. 23. From implantation to approximately 8 weeks, the cluster of cells is called a(n): A) Zygote. B) Embryo. C) Fetus. D) Fertilized ovum. Show Answer Correct Answer: B) Embryo. 24. Where are the mitochondria located in the spermatozoa? A) In the head. B) In the tail. C) In the middle piece. D) None of the above. Show Answer Correct Answer: C) In the middle piece. 25. Which of these is not a viviparous organism? A) Birds. B) Humans. C) Dogs. D) Rats. Show Answer Correct Answer: A) Birds. ← 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