This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 3 Human Reproduction – Quiz 17 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 17 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The body beginning to change from a child's into an adult's. A) Conception. B) Ovulation. C) Pituitary. D) Puberty. Show Answer Correct Answer: D) Puberty. 2. 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. 3. A male shark has 40 chromosomes in each of its sex cells. How many would be present in its BODY cells? A) 80. B) 20. C) 160. D) 40. Show Answer Correct Answer: A) 80. 4. 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. 5. 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. 6. The process where the fertilised egg is implanted onto the uterine lining is known as A) Ovulation. B) Implantation. C) Fertilisation. D) Reproduction. Show Answer Correct Answer: B) Implantation. 7. 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. 8. The ..... is the maximum population that the environment can normally support for an indefinite period. A) Exponential rate. B) Carrying capacity. C) Biotic potential. D) Infection control. Show Answer Correct Answer: B) Carrying capacity. 9. 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) 300 million, 400, 1. B) 300 million, 400, 400. C) 400, 50, 1. D) 400, 200, 200. Show Answer Correct Answer: A) 300 million, 400, 1. 10. The ovarian cycle lasts about A) 28 days. B) One week. C) 2 days. D) 14 days. Show Answer Correct Answer: A) 28 days. 11. What are sexual transmitted infections/diseases? A) Diseases or infections spread by sexual intercourse. B) Diseases or infections spread by the amniotic fluid. C) Diseases or infections spread by pregnancy. D) Diseases or infections spread by fertilisation. Show Answer Correct Answer: A) Diseases or infections spread by sexual intercourse. 12. The process of morphogenesis of the male gamete A) Spermiogenesis. B) Spermination. C) Spermatogenesis. D) Spermatogonion. Show Answer Correct Answer: A) Spermiogenesis. 13. The luteal phase is also called A) Secretory phase. B) Follicular phase. C) Menstrual phase. D) Proliferation. Show Answer Correct Answer: A) Secretory phase. 14. During the development of embryo, which of the following occurs first? A) Differentiation of cells. B) Differentiation of organ systems. C) Differentiation of organ. D) Differentiation of tissue. Show Answer Correct Answer: A) Differentiation of cells. 15. 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. 16. The main male hormone is ..... A) Estrogen. B) Progesterone. C) FSH. D) Testosterone. Show Answer Correct Answer: D) Testosterone. 17. 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. 18. 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. 19. Mammary ampulla is connected to ..... through which milk is sucked out A) Mammary duct. B) Alveolar duct. C) Lactiferous duct. D) Mammary tubule. Show Answer Correct Answer: C) Lactiferous duct. 20. What is the function of LH? A) To stimulate the development of egg cells in the ovaries. B) To stimulate the production of progesterone. C) To trigger ovulation. D) To stimulate the production of testosterone. Show Answer Correct Answer: C) To trigger ovulation. 21. Which hormone causes male secondary sexual characteristics to develop? A) Progesterone. B) Testosterone. C) LH. D) Oestrogen. Show Answer Correct Answer: B) Testosterone. 22. 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. 23. In menstrual cycle of 28/29 days, ovum is released during A) Middle of the cycle. B) End of the cycle. C) Any time during the cycle. D) Beginning of the cycle. Show Answer Correct Answer: A) Middle of the cycle. 24. People who feel attracted to both the opposite and the same sex are A) Asexual. B) Heterosexual. C) Bisexual. D) Homosexual. Show Answer Correct Answer: C) Bisexual. 25. In breast, the mammary alveoli open in to the A) Lactiferous duct. B) Mammary ampulla. C) Mammary duct. D) Mammary tubule. Show Answer Correct Answer: D) Mammary tubule. 26. 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. 27. 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. 28. Identify the innermost layer of the human eyeball A) Iris. B) Choroid. C) Retina. D) Sclera. Show Answer Correct Answer: C) Retina. 29. Where sperm cells are created A) Seminal vesicle. B) Testicles. C) Ovaries. D) Prostate gland. Show Answer Correct Answer: B) Testicles. 30. 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). 31. How many oviducts are there in a Female Reproductive System? A) 2. B) 3. C) 1. D) 4. Show Answer Correct Answer: A) 2. 32. 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. 33. Primary Spermatocytes contain 46 chromosomes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 34. Which of the following regulates the blood sugar level? A) Thyroid. B) Pancreas. C) Pituitary. D) Parathyroid. Show Answer Correct Answer: B) Pancreas. 35. 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. 36. The pituitary hormone that stimulates meiosis I A) Progesterone. B) Lutenising hormone. C) Follicle Stimulating Hormone. D) Corticosterone. Show Answer Correct Answer: C) Follicle Stimulating Hormone. 37. How are gametes formed? A) Mitosis. B) Meiosis. C) All the above. D) None of the above. Show Answer Correct Answer: B) Meiosis. 38. In amniocentesis, the fluid is taken from- A) Body fluid of mother. B) Mother's blood. C) Foetal blood. D) Fluid surrounding foetus. Show Answer Correct Answer: D) Fluid surrounding foetus. 39. 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. 40. Which phase is the first day of the menstrual cycle and is the discharge of blood and uterine tissue? A) Ovulation. B) Menstruation. C) Follicular phase. D) Luteal phase. Show Answer Correct Answer: B) Menstruation. 41. From implantation to approximately 8 weeks, the cluster of cells is called a(n): A) Embryo. B) Fertilized ovum. C) Fetus. D) Zygote. Show Answer Correct Answer: A) Embryo. 42. 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. 43. Which of these is not a viviparous organism? A) Birds. B) Dogs. C) Rats. D) Humans. Show Answer Correct Answer: A) Birds. 44. The ovum that has been fertilised by sperm turns into ..... and then divide itself to form multiple cells known as ..... A) Foetus, embryo. B) Zygote, embryo. C) Embryo, zygote. D) Embryo, foetus. Show Answer Correct Answer: B) Zygote, embryo. 45. Which of the following layers in an antral follicle is acellular? A) Zona pellucida. B) Stroma. C) Granulosa. D) Theca interna. Show Answer Correct Answer: A) Zona pellucida. 46. In the female reproductive diagram, which structure connects the ovary to the uterus and is the usual site of fertilization? A) Uterus central muscular organ. B) Fallopian tube connecting ovary and uterus. C) Vagina external canal to body. D) Ovary producing female gametes. Show Answer Correct Answer: B) Fallopian tube connecting ovary and uterus. 47. Identify the following body changes during puberty:Appearance of Adam's apple A) Boys ONLY. B) BOTH boys and Girls. C) Girls ONLY. D) None of the above. Show Answer Correct Answer: A) Boys ONLY. 48. Oogenesis results in the formation of: A) 4 ova. B) 1 ovum; 3 polar bodies. C) 1 ovum; 3 secondary oocytes. D) 2 ova; 2 polar bodies. Show Answer Correct Answer: B) 1 ovum; 3 polar bodies. 49. The vas deferens receives duct from the seminal vesicle and opens into urethra as: A) Epididymis. B) Efferent ductule. C) Ejaculatory duct. D) Ureter. Show Answer Correct Answer: C) Ejaculatory duct. 50. Fertilization usually happens here A) Ovaries. B) Uterus. C) Fallopian tube. D) None of the above. Show Answer Correct Answer: C) Fallopian tube. 51. Which change during puberty happens to boys and girls? A) Hips widen. B) Underarm hair grows. C) Facial hair grows. D) None of the above. Show Answer Correct Answer: B) Underarm hair grows. 52. What part of the female reproduction system comes after the vagina? A) The fallopian tubes. B) The cervix. C) The ovaries. D) None of the above. Show Answer Correct Answer: B) The cervix. 53. Ovulation in a typical, or "average, " cycle usually occurs on day ..... A) 7. B) 28. C) 21. D) 14. Show Answer Correct Answer: D) 14. 54. The process of development of follicles A) Oogenesis. B) Ovulation. C) Folliculogenesis. D) Fertilisation. Show Answer Correct Answer: C) Folliculogenesis. 55. What normally happens on day 14 of the menstrual cycle? A) Period (menstruation). B) Lining of the womb starts to thicken. C) Egg released (ovulation). D) Egg dies if not fertilised. Show Answer Correct Answer: C) Egg released (ovulation). 56. ..... occurs in males during the period between puberty and senility A) Oogenesis. B) Spermatogenesis. C) Spermiogenesis. D) None of the above. Show Answer Correct Answer: B) Spermatogenesis. 57. The study of how traits are inherited through the interactions of genes. A) Genetics. B) Heredity. C) Trait. D) Allele. Show Answer Correct Answer: A) Genetics. 58. What is the process called when a sperm fertilises an egg? A) Ovulation. B) Gestation. C) Menstruation. D) Fertilisation. Show Answer Correct Answer: D) Fertilisation. 59. Morula stage is generally observed in A) Infundibulum region. B) Womb. C) Ampulla region. D) Isthmus region. Show Answer Correct Answer: D) Isthmus region. 60. One feature that is common to both sperm (male gamete) and egg (female gamete) is A) A haploid nucleus. B) A food store. C) A diameter of approximately 100 micrometers. D) The abundance of mitochondria in cytoplasm. Show Answer Correct Answer: A) A haploid nucleus. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books