This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 3 Human Reproduction – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 19 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is a fertilized egg also known as? A) A blastocyst. B) A zygote. C) An embryo. D) A gamete. Show Answer Correct Answer: B) A zygote. 2. Which organ of the male reproductive system serves as the passage of urine and sperm? A) Penis. B) Testes. C) Urethra. D) Epididymis. Show Answer Correct Answer: C) Urethra. 3. The role of sperm is to: A) Produce male secondary sexual characteristics. B) Fertilise an ovule. C) Be fertilised by an egg cell. D) Fertilise an egg cell. Show Answer Correct Answer: D) Fertilise an egg cell. 4. Which connective tissue surrounds the testis? A) Spongy connective tissue. B) Corionic tissue. C) Fibrous tissue. D) Tunica albuginea. Show Answer Correct Answer: C) Fibrous tissue. 5. The reproductive cycle in females is regulated primarily by A) Estrogen and testosterone. B) Estrogen and progesterone. C) Progesterone and insulin. D) Progesterone and testosterone. Show Answer Correct Answer: B) Estrogen and progesterone. 6. Ferilization in oviduct takes place at A) Ampullar-isthmus region. B) Ampullary-infundibulum region. C) Isthmus-infundibulum region. D) Uterus-fundus region. Show Answer Correct Answer: A) Ampullar-isthmus region. 7. The correct sequence for passage of secretion from the mammary gland is A) Alveoli-Mammary Tubules-Mammary Duct-Ampulla-Lactiferous Duct. B) Mammary Tubules-Mammary Duct-Ampulla-Lactiferous Duct-Alveoli. C) Alveoli-Mammary Duct-Mammary Tubules-Ampulla-Lactiferous Duct. D) Alveoli-Mammary Tubules-Mammary Duct-Lactiferous Duct-Ampulla. Show Answer Correct Answer: A) Alveoli-Mammary Tubules-Mammary Duct-Ampulla-Lactiferous Duct. 8. Which part of the female reproductive system is the site of fertilization? A) Uterus. B) Fallopian tube. C) Ovary. D) Cervix. Show Answer Correct Answer: B) Fallopian tube. 9. When do males start producing sperm? A) After 70 years of age. B) When the female produces the ova. C) During puberty (12-15 years). D) As soon as they are born. Show Answer Correct Answer: C) During puberty (12-15 years). 10. What is the walnut-sized structure that lies below the urinary bladder which helps nourish the bladder? A) Urethra. B) Epididymis. C) Prostate gland. D) Vas deferentia. Show Answer Correct Answer: C) Prostate gland. 11. The union of gametes is called A) Fertilisation. B) Zygote. C) Embryo. D) Fecundation. Show Answer Correct Answer: A) Fertilisation. 12. Choose the right order A) The amniotic sac develops inside the embryo, in the mother's uterus. B) The uterus develops inside the amniotic sac, in the mother's embryo. C) No one is correct. D) The embryo develops inside the amniotic sac, in the mother's uterus. Show Answer Correct Answer: D) The embryo develops inside the amniotic sac, in the mother's uterus. 13. Chromosomes are related to: A) Cytoplasm. B) Energy. C) No answer is correct. D) DNA. Show Answer Correct Answer: D) DNA. 14. Identify the following stages of adolescence:Growth slows down and reaches approximately 95% of adult size. A) EARLY adolescence. B) MIDDLE adolescence. C) LATE adolescence. D) None of the above. Show Answer Correct Answer: B) MIDDLE adolescence. 15. The ..... phase of menstrual cycle is also called secretory phase. A) Luteal. B) Menstrual. C) Follicular. D) Ovulatory. Show Answer Correct Answer: A) Luteal. 16. The shedding and bleeding of the decidua during menses is directly caused by low levels of ..... A) GnRH. B) LH. C) FSH. D) Sex steroids. Show Answer Correct Answer: D) Sex steroids. 17. Cytoplasm of ovum does not contain A) Golgi. B) Ribosomes. C) Centrosome. D) Mitochondria. Show Answer Correct Answer: C) Centrosome. 18. Which of the following cannot be detected in a developing foetus by amniocentesis A) Jaundice. B) Colourblindness. C) Down's syndrome. D) Cystic fibrosis. Show Answer Correct Answer: A) Jaundice. 19. Which hormone is responsible for the development of female secondary sexual characteristics? A) Insulin. B) Testosterone. C) Progesterone. D) Estrogen. Show Answer Correct Answer: D) Estrogen. 20. The release of an ovum from an ovary. A) Testicles. B) Adaptation. C) Recognition. D) Ovulation. Show Answer Correct Answer: D) Ovulation. 21. They produce the sperm A) Semen. B) Tubules. C) Testes. D) None of the above. Show Answer Correct Answer: C) Testes. 22. The correct chronological order of following events is:- A) Gametogenesis-fertilization-insemination-gestation-implantation-parturition. B) Gametogenesis-insemination-fertilization-implantation-parturition-gestation. C) Gametogenesis-insemination-fertilization-implantation-gestation-parturition. D) None of these. Show Answer Correct Answer: C) Gametogenesis-insemination-fertilization-implantation-gestation-parturition. 23. Which of the following is not associated with ovulation? A) LH surge. B) Decrease in Estradiol. C) Release of secondary oocyte. D) Full development of Graafian follicle. Show Answer Correct Answer: B) Decrease in Estradiol. 24. Choose the gland or structure that produces a thick, yellowish secretion which nourishes and activates the sperm A) Prostate gland. B) Seminal vesicle. C) Ejaculatory duct. D) Bulbourethral gland. Show Answer Correct Answer: B) Seminal vesicle. 25. Which of the following statements about sperm production and maturation is correct? A) Spermatozoa are produced in the epididymides and stored in the testicles. B) Spermatozoa are produced in the testicles and stored in the seminiferous tubules. C) Spermatozoa are produced in the seminiferous tubules and stored in the vasa deferentia. D) Spermatozoa are produced in the seminiferous tubules and stored in the epididymides. Show Answer Correct Answer: D) Spermatozoa are produced in the seminiferous tubules and stored in the epididymides. 26. In humans, sperms are produced in A) Vas deferens. B) Seminiferous tubules. C) Rete testis. D) Epididymis. Show Answer Correct Answer: B) Seminiferous tubules. 27. Whuch represnt a condition of highly reduced motility? A) Oligospermia. B) Polyspermy. C) Azospermia. D) Asthenospermia. Show Answer Correct Answer: D) Asthenospermia. 28. What do you call the female sex cell? A) Sperm cell. B) Haploid. C) Egg cell. D) Diploid. Show Answer Correct Answer: C) Egg cell. 29. Choose the incorrect statement from the following: A) In birds and mammals internal fertilisation takes place. B) Colostrum contains antibodies and nutrients. C) Polyspermy is prevented by the chemical changes in the egg surface. D) In the human female implantation occurs almost seven days after fertilisation. Show Answer Correct Answer: C) Polyspermy is prevented by the chemical changes in the egg surface. 30. What organ does not belong to boys? A) Prostate. B) Vagina. C) Penis. D) Testicle. Show Answer Correct Answer: B) Vagina. 31. Short-lived immunity acquired from mother to foetus across placenta or through mother's milk to the infant is categorized as: A) Passive immunity. B) Active immunity. C) Innate non-specific immunity. D) Cellular immunity. Show Answer Correct Answer: A) Passive immunity. 32. Which way does blood normally pass across the placenta? A) From the mother to the foetus. B) Blood does not pass across the placenta. C) From the foetus to the mother. D) None of the above. Show Answer Correct Answer: B) Blood does not pass across the placenta. 33. Primary Spermatocyte completes first meiotic cell division to produce A) Spermatids. B) Spermatogonia. C) Secondary Spermatocyte. D) Spermatozoa. Show Answer Correct Answer: C) Secondary Spermatocyte. 34. Reduction Division results in A) Haploid somatic cells. B) Haploid gametes. C) Diploid somatic cells. D) Diploid gametes. Show Answer Correct Answer: B) Haploid gametes. 35. The first foetal movement is observed during the ..... month of embryonic development. A) 5th. B) 3rd. C) 4th. D) 6th. Show Answer Correct Answer: A) 5th. 36. What is the order of layers or space from outside to inside? A) Perivitelline space-Zona pellucida-Ovum cytoplasm. B) Zona pellucida-perivitelline space-plasma membrane. C) Plasma membrane-perivitelline space-Zona pellucida. D) Perivitelline space-plasma membrane-Zona pellucida. Show Answer Correct Answer: B) Zona pellucida-perivitelline space-plasma membrane. 37. What cell decides the sex of the offspring? A) Brain cells. B) Sperm cells. C) Gametes. D) Egg cells. Show Answer Correct Answer: B) Sperm cells. 38. In sexual reproduction for plants, pollination must happen first before fertilisation. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 39. Testis is situated outside the abdominal cavity of males because the sperm motility requires ..... temperature than the body temperature. A) High. B) Low. C) All the above. D) None of the above. Show Answer Correct Answer: B) Low. 40. What is responsible for creating the hormones Oestrogen & progesterone? A) The Pituitary gland. B) The Hypothalamus. C) The ovaries. D) The Fallopian Tubes. Show Answer Correct Answer: C) The ovaries. 41. The part of the female reproductive system that protects the urethral and vaginal openings is the A) Labia majora. B) Labia minora. C) Clitoris. D) Mons pubis. Show Answer Correct Answer: B) Labia minora. 42. Secondary oocyte develops Zona pellucida around it in the A) Tertiary follicle. B) Secondary follicle. C) Primary follicle. D) Graafian follicle. Show Answer Correct Answer: D) Graafian follicle. 43. What is true about cleavage in fertilized eggs A) Meroblastic. B) Starts when egg reaches uterus. C) Starts in fallopian tubes. D) It is identical to normal mitosis. Show Answer Correct Answer: C) Starts in fallopian tubes. 44. What is the name for the part of the sex cells where the genetic material (chromosomes) are located? A) Cytoplasm. B) Nucleus. C) Mitochondrion. D) Stomata. Show Answer Correct Answer: B) Nucleus. 45. Morula with cavity inside is called A) Blastocyst. B) Implantation. C) Fetus. D) Embryo. Show Answer Correct Answer: A) Blastocyst. 46. In sexual reproduction the male produces ..... cells. A) Egg. B) Quack. C) Malex. D) Sperm. Show Answer Correct Answer: D) Sperm. 47. LH surge in the menstrual cycle of females results in ovulation A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 48. Which area does "axillary" refer to? A) Face. B) The penis or vagina. C) Back. D) Under the armpit. Show Answer Correct Answer: D) Under the armpit. 49. The menstrual cycle is how long on average? A) 14 days. B) 28 days. C) 28 months. D) 12 days. Show Answer Correct Answer: B) 28 days. 50. Name the stage of embryonic development during implantation A) Morula. B) Blastocyst. C) Gastrula. D) Neurula. Show Answer Correct Answer: B) Blastocyst. 51. Asexual reproduction happens faster than sexual reproduction. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 52. This structure has two functions:Production of testosterone and sperm. A) Testicles. B) Prostate. C) Pituitary Gland. D) Penis. Show Answer Correct Answer: A) Testicles. 53. Organ berikut yang bukan merupakan organ penyusun sistem reproduksi laki-laki adalah ..... A) Ureter. B) Testis. C) Vas deferens. D) Penis. Show Answer Correct Answer: A) Ureter. 54. If a normal first polar body contains 12 chromosomes then how many chromosomes are present in a cell of edometrium layer ..... A) 24. B) 12. C) 06. D) 20. Show Answer Correct Answer: A) 24. 55. Berikut ini adalah urutan mitosis yang tepat, yaitu ..... A) Profase-Metafase-Anafase-Telofase. B) Telofase-Anafase-Metafase-Profase. C) Profase-Anafase-Metafase-Telofase. D) Anafase-Telofase-Profase-Metafase. Show Answer Correct Answer: A) Profase-Metafase-Anafase-Telofase. 56. The embryo layer that forms the skin and nervous tissue is the ..... A) Endoderm. B) Deuterostome. C) Mesoderm. D) Ectoderm. Show Answer Correct Answer: D) Ectoderm. 57. Which of the following hormone acts on uterine muscle and causes its stronger contraction? A) Relaxin. B) Estrogen. C) Progesterone. D) Oxytocin. Show Answer Correct Answer: D) Oxytocin. 58. Which one is primary sex organ? A) Penis. B) Testis. C) Prostate. D) Scrotum. Show Answer Correct Answer: B) Testis. 59. Identify the following stages of adolescence:Has intense friendships with same sex A) EARLY adolescence. B) MIDDLE adolescence. C) LATE adolescence. D) None of the above. Show Answer Correct Answer: A) EARLY adolescence. 60. The developing baby in the womb gets food and oxygen from: A) The placenta. B) The mother's stomach. C) The ovary. D) The egg cell. Show Answer Correct Answer: A) The placenta. ← 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