This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 41 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 41 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Supplies oxygen to some developing mammals A) Crop. B) Keratin. C) Placenta. D) Crop. Show Answer Correct Answer: C) Placenta. 2. This is where the foetus develops until it is born. A) Uterus. B) Vagina. C) Urethra. D) None of the above. Show Answer Correct Answer: A) Uterus. 3. What are the diploid stages in spermatogenesis? A) Spermatogonia and spermatids. B) Spermatogonia and primary spermatocytes. C) Spermatogonia and sperms. D) Primary spermatocytes and secondary spermatocytes. Show Answer Correct Answer: D) Primary spermatocytes and secondary spermatocytes. 4. The body beginning to change from a child's into an adult's. A) Pituitary. B) Ovulation. C) Puberty. D) Conception. Show Answer Correct Answer: C) Puberty. 5. What is the function of the vagina in the female reproductive system? A) Egg production. B) Fertilization. C) Menstrual blood storage. D) Passage for childbirth and intercourse. Show Answer Correct Answer: D) Passage for childbirth and intercourse. 6. A male shark has 40 chromosomes in each of its sex cells. How many would be present in its BODY cells? A) 20. B) 40. C) 80. D) 160. Show Answer Correct Answer: C) 80. 7. Seminal plasma in humans is rich in ..... A) Fructose and certain enzymes but poor in calcium. B) Fructose, calcium and certain enzymes. C) Fructose and calcium but have no enzymes. D) Glucose and certain enzymes but have no calcium. Show Answer Correct Answer: B) Fructose, calcium and certain enzymes. 8. The weight of an ovule is ..... than the weight of the sperm A) Greater than. B) The same as. C) Less than. D) None of the above. Show Answer Correct Answer: A) Greater than. 9. The process where the fertilised egg is implanted onto the uterine lining is known as A) Fertilisation. B) Implantation. C) Ovulation. D) Reproduction. Show Answer Correct Answer: B) Implantation. 10. Where in the female reproductive system does fertilisation occur? A) Endometrium. B) Fallopian tube. C) Uterus. D) Vagina. Show Answer Correct Answer: B) Fallopian tube. 11. The ..... is the maximum population that the environment can normally support for an indefinite period. A) Biotic potential. B) Infection control. C) Carrying capacity. D) Exponential rate. Show Answer Correct Answer: C) Carrying capacity. 12. Number of sperm that start the journey (approximate)2. Number of sperm that get to the egg (approximate)3. Number of sperm that fertilise the egg A) 400, 200, 200. B) 300 million, 400, 400. C) 400, 50, 1. D) 300 million, 400, 1. Show Answer Correct Answer: D) 300 million, 400, 1. 13. The ovarian cycle lasts about A) 14 days. B) 28 days. C) One week. D) 2 days. Show Answer Correct Answer: B) 28 days. 14. What are sexual transmitted infections/diseases? A) Diseases or infections spread by the amniotic fluid. B) Diseases or infections spread by pregnancy. C) Diseases or infections spread by fertilisation. D) Diseases or infections spread by sexual intercourse. Show Answer Correct Answer: D) Diseases or infections spread by sexual intercourse. 15. The process of morphogenesis of the male gamete A) Spermatogonion. B) Spermatogenesis. C) Spermination. D) Spermiogenesis. Show Answer Correct Answer: D) Spermiogenesis. 16. The luteal phase is also called A) Menstrual phase. B) Proliferation. C) Secretory phase. D) Follicular phase. Show Answer Correct Answer: C) Secretory phase. 17. During the development of embryo, which of the following occurs first? A) Differentiation of organ. B) Differentiation of tissue. C) Differentiation of organ systems. D) Differentiation of cells. Show Answer Correct Answer: D) Differentiation of cells. 18. Which of the following is a male sex cell that meets with the egg to produce a zygote? A) Semen. B) Sperm. C) Penis. D) Scrotum. Show Answer Correct Answer: B) Sperm. 19. The main male hormone is ..... A) Testosterone. B) Estrogen. C) Progesterone. D) FSH. Show Answer Correct Answer: A) Testosterone. 20. Which type of reproduction leads to increased genetic variation on a population? A) Parthenogenesis. B) Asexual reproduction. C) Sexual reproduction. D) Vegetative reproduction. Show Answer Correct Answer: C) Sexual reproduction. 21. Where in their female reproductive system is fertilization most likely to take place? A) Fallopian tube. B) Uterus. C) Vagina. D) Cervix. Show Answer Correct Answer: A) Fallopian tube. 22. Human ova and sperm are similar in that A) They both have the same number of chromosomes. B) They are the same size. C) They both have flagellum. D) Both are produce from puberty until death. Show Answer Correct Answer: A) They both have the same number of chromosomes. 23. Mammary ampulla is connected to ..... through which milk is sucked out A) Alveolar duct. B) Mammary tubule. C) Lactiferous duct. D) Mammary duct. Show Answer Correct Answer: C) Lactiferous duct. 24. The stage in humans when our body undergoes changes that makes us sexually mature A) Retirement. B) Child. C) Baby. D) Puberty. Show Answer Correct Answer: D) Puberty. 25. What is the function of LH? A) To stimulate the production of testosterone. B) To stimulate the development of egg cells in the ovaries. C) To trigger ovulation. D) To stimulate the production of progesterone. Show Answer Correct Answer: C) To trigger ovulation. ← 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