This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 18 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 18 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The first divisions of the zygote while it travels through the fallopian tubes is known as A) Cleavage. B) Endometrial lining. C) Embryo. D) Implantation. Show Answer Correct Answer: A) Cleavage. 2. A group of similar cells that work together to do one job. A) Organs. B) Organelles. C) Tissue. D) Organism. Show Answer Correct Answer: C) Tissue. 3. Select the correct option describing gonadotropin acativity in a normal pregnant female A) High level of HCG stimulate the thickening of endometrium. B) High level of FSHand LH stimulate the thickening of endometrium. C) High level of FSH and LH facilitate implantation of embryo. D) High level of HCG stimulate the synthesis of estrogen and progestron. Show Answer Correct Answer: D) High level of HCG stimulate the synthesis of estrogen and progestron. 4. Fertilization of human eggs usually takes place in the A) Fallopian tubes. B) Uterus. C) Ovaries. D) Vagina. Show Answer Correct Answer: A) Fallopian tubes. 5. Which part of the female reproductive system produces the hormone progesterone? A) Fallopian Tube. B) Ovary. C) Uterus lining. D) Cervix. Show Answer Correct Answer: B) Ovary. 6. What is the process by which pollen is transferred from the male reproductive organs to the female reproductive organs in plants? A) Germination. B) Pollination. C) Fertilization. D) Photosynthesis. Show Answer Correct Answer: B) Pollination. 7. This structure forms around the embryo and is filled with fluid that protects the embyro A) Amniotic sac. B) Placenta. C) Yolk. D) None of the above. Show Answer Correct Answer: A) Amniotic sac. 8. Identify the following characteristics of gametogenesis according to its type:Begins with foetus A) Spermatogenesis. B) Oogenesis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Oogenesis. 9. Each seminiferous tubule is lined on its inside by:A. Male germ cellsB. Interstitial cellsC. Leydig cellsD. Sertoli cells A) A, B. B) A, B, C. C) A, D. D) A, B, C, D. Show Answer Correct Answer: C) A, D. 10. The reproductive cell of the mother is called an egg or an ..... A) Embryo. B) Sperm. C) Ovum. D) Fetus. Show Answer Correct Answer: C) Ovum. 11. Oogenesis in females starts during ..... A) Embryo stage. B) Puberty stage. C) Adult reproductive stage. D) None of the above. Show Answer Correct Answer: A) Embryo stage. 12. What is the primary male sex organ? A) Egg cell. B) Ovary. C) Sperm cell. D) Testes. Show Answer Correct Answer: D) Testes. 13. The correct sequence of spermatogenetic stages leading to the formation of sperms in a mature human testes is: A) Spermatogonia-spermatocyte-spermatid-sperms. B) Spermatid-spermatocyte-spermatogonia-sperms. C) Spermatogonia-spermatid-spermatocyte-sperms. D) Spermatocyte-spermatogonia-spermatid-sperms. Show Answer Correct Answer: A) Spermatogonia-spermatocyte-spermatid-sperms. 14. The reproductive cycle of a human is usually regulated by A) A) sex cells. B) B) hormones. C) C) natural selection. D) None of the above. Show Answer Correct Answer: B) B) hormones. 15. Spermiation is the process of the release of sperms from: A) Seminiferous tubule. B) Vasdeferens. C) Epididymis. D) Prostate gland. Show Answer Correct Answer: A) Seminiferous tubule. 16. What are ovaries? A) The male reproductive organs that produce sperm and hormones. B) The female reproductive organs that produce eggs (ova) and hormones such as estrogen and progesterone. C) The organs responsible for digestion in females. D) The glands that regulate metabolism in the body. Show Answer Correct Answer: B) The female reproductive organs that produce eggs (ova) and hormones such as estrogen and progesterone. 17. In human beings, after one month of pregnancy, the embryo's ..... organ is formed. A) Kidney. B) Brain. C) Lungs. D) Heart. Show Answer Correct Answer: D) Heart. 18. Which two processes are included in the prenatal development of a single human embryo? A) Gastrulation and differentiation. B) Menopause and cleavage. C) Puberty and gastrulation. D) Menstruation and fertilization. Show Answer Correct Answer: A) Gastrulation and differentiation. 19. Estrogen has a direct effect on the A) Formation of a zygote. B) Changes within the uterus. C) Movement of an egg toward the sperm. D) Development of a placenta within the ovary. Show Answer Correct Answer: B) Changes within the uterus. 20. Non-identical twins can occur when: A) A fertilised egg cell splits into two cells. B) Two egg cells are fertilised. C) Two sperm cells fertilise an egg cell. D) Two ovaries are fertilised. Show Answer Correct Answer: B) Two egg cells are fertilised. 21. Eggs are released into the: A) Ovary. B) Uterus. C) Fallopian tube. D) Vagina. Show Answer Correct Answer: C) Fallopian tube. 22. These hormones are secreted only in a pregnant female A) Oxytocin, vasopressin, HPL. B) HPL, HCG, progesterone. C) Relaxin, HCG, HPL. D) HPL, HCG, oxytocin. Show Answer Correct Answer: C) Relaxin, HCG, HPL. 23. How many second polar bodies has produced by a 45 years virgin female in her life:- A) 480. B) 45. C) 0. D) 90. Show Answer Correct Answer: C) 0. 24. The male reproductive system produces sex hormone called A) 0estrogen. B) Progesterone. C) Testosterone. D) Andresterone. Show Answer Correct Answer: C) Testosterone. 25. The other name of follicular cells A) Corona radiata. B) Luteal cells. C) Granulosa cells. D) Graffian cells. Show Answer Correct Answer: C) Granulosa cells. ← 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