This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 84 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 84 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which cell has been fertilized by a sperm cell? A) Primary oocyte. B) Secondary oocyte. C) Ovum. D) Oogonia. Show Answer Correct Answer: B) Secondary oocyte. 2. The nutritive cells found in seminiferous tubules are A) Leydig's cells. B) Follicular cells. C) Chromaffin cells. D) Sertoli cells. Show Answer Correct Answer: D) Sertoli cells. 3. What is the function of vas deferens? A) A muscular tube that passes upward alongside the testes and transports mature sperm to the urethra. B) Sperm storage organ. C) Feces holding area. D) It produces sugar-rich fluid that provides sperm with a source of energy to help them move. Show Answer Correct Answer: A) A muscular tube that passes upward alongside the testes and transports mature sperm to the urethra. 4. What do Boys AND Girls develop during puberty? A) Pubic Hair. B) Deeper voice. C) Gradually Deeper Voice. D) Body becomes more Muscular. Show Answer Correct Answer: A) Pubic Hair. 5. A cross section at the mid point of the middle piece of a human sperm will show ..... A) Centriole mitochondria and 9+2 arrangement of microtubule. B) 9+2 arrangement of microtubule. C) Mitochondria and 9+2 arrangement of microtubule. D) Centriole and mitochondria. Show Answer Correct Answer: C) Mitochondria and 9+2 arrangement of microtubule. 6. If multiple eggs have been fertilized by a different sperm and develop at the same time in the uterus. These are known as A) Identical twins. B) Fraternal twins. C) All the above. D) None of the above. Show Answer Correct Answer: B) Fraternal twins. 7. Which of the following is an important function of the mammalian placenta? A) Secretes hormones that are important during pregnancy. B) Stores the metabolic waste of the developing foetus. C) Helps to regulate and maintain a constant foetal body temperature. D) Transports drugs taken by the mother during pregnancy. Show Answer Correct Answer: A) Secretes hormones that are important during pregnancy. 8. All female reproductive organs are external A) False. B) True. C) All the above. D) None of the above. Show Answer Correct Answer: A) False. 9. Which structure that contains blood vessel of the foetus? A) Placenta. B) Umbilical cord. C) Uterus. D) Amniotic fluid. Show Answer Correct Answer: B) Umbilical cord. 10. A temporary suspension of the menstrual cycle normally occurs during A) Menstruation. B) Pregnancy. C) Ovulation. D) Menopause. Show Answer Correct Answer: B) Pregnancy. 11. Which of the following organ is differentiated first during development? A) Heart. B) Skin. C) Brain. D) Neural tube. Show Answer Correct Answer: A) Heart. 12. How does the baby exchange substances between the itself and the mother? A) Ovary. B) Womb. C) Umbilical cord. D) Fallopian tube. Show Answer Correct Answer: C) Umbilical cord. 13. The best contraceptive method for a teenager or a person with not a settle couple is ..... A) Contraceptive pill. B) Condom. C) Coitus interruptus. D) None of the above. Show Answer Correct Answer: B) Condom. 14. Which of the following hormone is not involved in the parturition? A) Prolactin. B) Oxytocin. C) Relaxin. D) Estrogen. Show Answer Correct Answer: A) Prolactin. 15. Which process describes cells of an embryo specializing to become all the different cells of the organism? A) Embryogenesis. B) Differentiation. C) Puberty. D) Maturation. Show Answer Correct Answer: B) Differentiation. 16. Identify the following stages of adolescence:Has frequent mood changes. A) EARLY adolescence. B) MIDDLE adolescence. C) LATE adolescence. D) None of the above. Show Answer Correct Answer: A) EARLY adolescence. 17. Identical twins are formed when A) The embryo splits into two and then stays stuck together. B) When 1 egg is fertilized by 1 sperm and then divides into 2. C) When two eggs are fertilized by one sperm. D) When one egg is fertilized by two sperm. Show Answer Correct Answer: B) When 1 egg is fertilized by 1 sperm and then divides into 2. 18. Primary Oocytes are arrested at which stage of cell cycle? A) Prophase of Mitosis. B) Prophase-I of Meiosis. C) Prophase-II of Meiosis. D) Metaphase-I of Meiosis. Show Answer Correct Answer: B) Prophase-I of Meiosis. 19. What is the single cell formed when the sperm and the egg join together? A) Sex cell. B) Zygote. C) Fetus. D) Embryo. Show Answer Correct Answer: B) Zygote. 20. Several hormones like hCG, hPL, oestrogen and progesterone are produced by A) Ovary. B) Placenta. C) Fallopian tube. D) Pitutary. Show Answer Correct Answer: B) Placenta. 21. Which path correctly traces sperm from production to exit based on the male diagram? A) Vas deferens $\rightarrow$ testes $\rightarrow$ epididymis $\rightarrow$ ureter. B) Epididymis $\rightarrow$ testes $\rightarrow$ urethra $\rightarrow$ vas deferens. C) Testes $\rightarrow$ epididymis $\rightarrow$ vas deferens $\rightarrow$ urethra. D) Urethra $\rightarrow$ epididymis $\rightarrow$ vas deferens $\rightarrow$ testes. Show Answer Correct Answer: C) Testes $\rightarrow$ epididymis $\rightarrow$ vas deferens $\rightarrow$ urethra. 22. What process creates our gametes? A) Mitosis. B) Meiosis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Meiosis. 23. In sexual reproduction offspring look ..... from their parent. A) Identical. B) Different. C) The opposite. D) Happy. Show Answer Correct Answer: B) Different. 24. The male germ cells lining the seminiferous tubules are called ..... A) Oogonia. B) Spermatogonia. C) All the above. D) None of the above. Show Answer Correct Answer: B) Spermatogonia. 25. Choose the correct term for the description below: "A reproductive cell with 23 chromosomes." A) Zygote. B) Oestrogen. C) Gamete. D) Haploid. Show Answer Correct Answer: C) Gamete. ← 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