This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 69 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 69 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The following parts belongs to the human reproductive system, except A) Uterus. B) Bladder. C) Vagina. D) Ovary. Show Answer Correct Answer: B) Bladder. 2. Assertion:Finger-like projections appear on the trophoblast called chorionic villi after implantation. Reason:Chorionic villi and uterine tissue interdigitate with each other to form placenta. 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: A) Both A and R are true and R is the correct explanation of A. 3. Which of th folloing is true regarding sperm? (AIIMS-2007) A) Fertilizin:for penetrating egg membrane. B) Hyaluronidase:for penetrating egg membrane. C) Acrosin:dissolves corona radiata. D) Capacitation:takes place in penis. Show Answer Correct Answer: B) Hyaluronidase:for penetrating egg membrane. 4. ..... is a process that produces cells with HALF the chromosomes. A) Budding. B) Fragementation. C) Regeneration. D) Meiosis. Show Answer Correct Answer: D) Meiosis. 5. What would be the number of chromosome in the spermatids of human? A) 23. B) 33. C) 43. D) 46. Show Answer Correct Answer: A) 23. 6. STD's stands for? A) Standard Time Deviation. B) Sexually Transmitted Diseases. C) Sexually Transported Dissociations. D) Sexually Transmissible Discomfort. Show Answer Correct Answer: B) Sexually Transmitted Diseases. 7. What is the role of the vulva? A) The external part of the female genitalia, which protects the internal reproductive organs. B) A structure that produces hormones in the female body. C) The internal part of the female reproductive system responsible for fertilization. D) A type of infection that affects the female reproductive organs. Show Answer Correct Answer: A) The external part of the female genitalia, which protects the internal reproductive organs. 8. Rete testes, vasa efferentia, epididymis and vas deferenes are the ..... in males A) Accessory glands. B) Hormones. C) Accessory ducts. D) None of the above. Show Answer Correct Answer: C) Accessory ducts. 9. Most single cell organisms reproduce in which way? A) Asexual. B) Sexual. C) Fission. D) Budding. Show Answer Correct Answer: A) Asexual. 10. During which trimester do genitals begin to develop? A) 1st. B) 2nd. C) 3rd. D) None of the above. Show Answer Correct Answer: A) 1st. 11. How long is gestation in humans. A) 4 weeks. B) 40 weeks. C) 52 weeks. D) None of the above. Show Answer Correct Answer: B) 40 weeks. 12. Find out the incorrect statement about ovaries. A) Each ovary is connected to the pelvic wall and uterus by ligaments. B) The ovarian stroma is divided into two zones, i.e., a peripheral cortex and an inner medulla. C) Each ovary is covered by thick epithelium which encloses the ovarian stroma. D) Ovaries are the primary female sex organs. Show Answer Correct Answer: C) Each ovary is covered by thick epithelium which encloses the ovarian stroma. 13. What are the primary sexual characteristics? A) Differences between the penis and the vagina. B) Differences between the puberty in girls and boys. C) Differences between male and female reproductive organs. D) None of the above. Show Answer Correct Answer: C) Differences between male and female reproductive organs. 14. Withdrawal of which of the following hormones is the immediate cause of menstruation? A) FSH. B) FSH-RH. C) Progesterone. D) Estrogen. Show Answer Correct Answer: C) Progesterone. 15. How is the placenta designed to efficiently pass Glucose, fats, amino acids and other small molecules between the mother and fetus? A) Villi to increase the surface area. B) Large number of mitochondria for active transport. C) A thick membrane. D) Lots of carrier proteins in the membrane. Show Answer Correct Answer: A) Villi to increase the surface area. 16. What is the multi-celled mass formed by the divisions of the single cell formed at conception? A) Zygote. B) Egg cell. C) Fetus. D) Embryo. Show Answer Correct Answer: D) Embryo. 17. Which one of the following statement is incorrect about menopause A) Generally occurs between the the age of 45 and 55. B) Costly cessation of the female reproductive cycle. C) Anterior pituitary no longer produce FSH and LH. D) Ovaries slowly reduce the secretion of oestrogen. Show Answer Correct Answer: C) Anterior pituitary no longer produce FSH and LH. 18. What hormone is responsible for the secondary sex characteristics found in women? A) Estrogen. B) LH. C) FSH. D) Testosterone. Show Answer Correct Answer: A) Estrogen. 19. For the process of IVF a female receives injections of which hormone to cause several of her eggs to mature? A) FSH. B) Oestrogen. C) LH. D) Progesterone. Show Answer Correct Answer: A) FSH. 20. Stem cells which have the potential to produce all type of cells, tissue are present in A) Endoderm. B) Trophoblast. C) Inner cell mass. D) Ectoderm. Show Answer Correct Answer: C) Inner cell mass. 21. Female secondary sexual characteristics are caused by A) Progesterone. B) FSH. C) LH. D) Estrogen. Show Answer Correct Answer: D) Estrogen. 22. Which one of the followings regarding 'Estrogen' is correct? A) Causes the endometrium to rebuild. B) Has no effect on the Wolffian duct. C) Maintains the secondary sexual characteristics in female. D) All of these. Show Answer Correct Answer: D) All of these. 23. The fusion of the nuclei of ova and sperm is called A) Ovulation. B) Deamination. C) Implantation. D) Fertilization. Show Answer Correct Answer: D) Fertilization. 24. At what point does the secondary oocyte complete meiosis? A) When acrosomal enzymes begin to break down the egg's jelly coat. B) When the leuteinising hormone triggers ovulation. C) After it is penetrated by a sperm cell. D) When the secondary oocyte implants in the endometrium of the uterus. Show Answer Correct Answer: C) After it is penetrated by a sperm cell. 25. Head of the sperm is formed of A) Nucleus and mitochondria. B) Mitochondria and acrosome. C) Nucleus and acrosome. D) Acrosome and centriole. Show Answer Correct Answer: C) Nucleus and acrosome. ← 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