This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 3 Human Reproduction – Quiz 13 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 13 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The layer in ovum that helps to prevent multiple sperms from fertilizing is A) Corona radiata. B) Zona pellucida. C) Vitelline membrane. D) Plasma membrane. Show Answer Correct Answer: B) Zona pellucida. 2. What is the term that describes when the growing cells become recognizable as a human? A) Zygote. B) Baby. C) Embryo. D) Fetus. Show Answer Correct Answer: D) Fetus. 3. Name the gland that controls growth during puberty. A) Endocrine. B) Thymus. C) Pituitary. D) Adrenal. Show Answer Correct Answer: C) Pituitary. 4. The fate of placenta is to: A) Provide nutrition to embryo. B) Provide support to embryo. C) Provide minerals to embryo. D) None of the above. Show Answer Correct Answer: A) Provide nutrition to embryo. 5. What is the function of estrogen in the pre-ovulatory phase of the menstrual cycle? A) Development of the uterine myometrium. B) Converting Graafian follicle into corpus luteum. C) Development of the follicle. D) Re-epithelialization of the uterine endometrium. Show Answer Correct Answer: D) Re-epithelialization of the uterine endometrium. 6. Amminocentesis is a technique used to A) Determine errors in amino acid metabolism in embryo. B) Pin point specific cardiac ailments in embryo. C) Determine any hereditary genetic abnormality in embryo. D) All of these. Show Answer Correct Answer: A) Determine errors in amino acid metabolism in embryo. 7. In the male diagram, the vas deferens labeled near the pelvis most directly connects which two structures? A) Scrotum to seminal vesicle. B) Testes to prostate gland. C) Urethra to urinary bladder. D) Epididymis to urethra pathway. Show Answer Correct Answer: D) Epididymis to urethra pathway. 8. What is the source and function of HCG? A) Placenta; inhibits LH. B) Uterus; cause labor. C) Placenta; mimics LH. D) Ovary; stimulates FSH. Show Answer Correct Answer: C) Placenta; mimics LH. 9. Which female reproductive structure contains the ova? A) Fallopian tube. B) Uterus. C) Cervix. D) Ovary. Show Answer Correct Answer: D) Ovary. 10. What changes happen to boys during puberty? A) Voice breaks, body becomes more muscular and the body produces sperm. B) Breasts develop, body becomes more muscular and the body produces sperm. C) Voice breaks, body becomes more muscular and the hips widen. D) None of the above. Show Answer Correct Answer: A) Voice breaks, body becomes more muscular and the body produces sperm. 11. The fluid which is rich in calcium citate, fibrinolysin and acid phosphatase and makes 30% of the volume of semen is released by: A) Cowper's gland. B) Prostate gland. C) Seminal vesicle. D) Epididymis. Show Answer Correct Answer: B) Prostate gland. 12. The function of FSH in male is A) Act on leydig cells and stimulates secretion of factors responsible for spermiation. B) Act on sertoli cells and stimulates secretion of factors responsible for spermatogenesis. C) Act on interstitial cells and stimulates secretion of factors responsible for spermiogenesis. D) Act on sertoli cells and stimulates secretion of factors responsible for spermiogenesis. Show Answer Correct Answer: D) Act on sertoli cells and stimulates secretion of factors responsible for spermiogenesis. 13. The spermatogonia undergo division to produce sperms by the process of spermatogenesis. Choose the correct statement A) A) Spermatogonia have 46 chromosomes and always undergoes meiotic cell division. B) B) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division. C) . c) Primary spermatocytes divide by mitotic cell division. D) D) Spermatozoa are transformed intospermatids. Show Answer Correct Answer: B) B) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division. 14. Where are sperm stored while they are maturing? A) In the prostate. B) In the testes. C) In the epidymis. D) In the seminal vesicle. Show Answer Correct Answer: C) In the epidymis. 15. During oogenesis, each diploid cell produces A) Four functional eggs. B) Two functional eggs and two polar bodies. C) One functional egg and three polar bodies. D) Four functional polar bodies. Show Answer Correct Answer: C) One functional egg and three polar bodies. 16. Identify the following stages of adolescence:May experiment with sex, drugs, friends, risks. A) EARLY adolescence. B) MIDDLE adolescence. C) LATE adolescence. D) None of the above. Show Answer Correct Answer: B) MIDDLE adolescence. 17. The function of the scrotum is to A) Produce hormones. B) Maintain sperm production at a constant temperature. C) Make sperm. D) None of the above. Show Answer Correct Answer: B) Maintain sperm production at a constant temperature. 18. Name 1 adaptation of the placenta A) Small surface area. B) Full of fluid. C) Large capillary network. D) Cilia cells. Show Answer Correct Answer: C) Large capillary network. 19. In which part of human female reproductive system release of second polar body takes place A) Ovary. B) Fallopian tube. C) Uterus. D) Graafian follicle. Show Answer Correct Answer: B) Fallopian tube. 20. Mentrual cycles last as an average A) 35 days. B) 4 days. C) 20 days. D) 28 days. Show Answer Correct Answer: D) 28 days. 21. Identify the following organisms according to their nature of reproduction:Yeast A) Asexual. B) Sexual. C) All the above. D) None of the above. Show Answer Correct Answer: A) Asexual. 22. Which of the following is an example of change in girls during puberty stage. A) Menstrual period occur. B) Muscle build up. C) Voice become deepens. D) Enlargement of testicles. Show Answer Correct Answer: A) Menstrual period occur. 23. When the fetus cannot be delivered vaginally, a surgery is performed called a(n) A) Expulsion. B) Dilation. C) Birth. D) C-section. Show Answer Correct Answer: D) C-section. 24. The pill is a contraceptive method. It works by A) Killing sperm. B) Preventing ovulation. C) Preventing implantation. D) Blocking the oviducts. Show Answer Correct Answer: B) Preventing ovulation. 25. The outer membrane of the ovum which is broken by acrosome of sperm is A) Corona radiata. B) Zona pellucida. C) Plasmalemma. D) None of the above. Show Answer Correct Answer: B) Zona pellucida. 26. The process of release of the male gamete from the testis A) Spermiation. B) Spermatogonion. C) Spermiogenesis. D) Spermatogenesis. Show Answer Correct Answer: A) Spermiation. 27. What is the term for the shedding of the uterine lining in females if fertilization does not occur? A) Menstruation. B) Ovulation. C) Implantation. D) Fertilization. Show Answer Correct Answer: A) Menstruation. 28. Which of the following describes fertilization? A) Cell differentiation to form a blastula. B) A sperm joining an egg to form a zygote. C) Formation of germ layers in a deuterostome. D) Sperm and egg production. Show Answer Correct Answer: B) A sperm joining an egg to form a zygote. 29. The released oocyte is in stage A) Secondary oocyte. B) Secondary follicle. C) Ovum. D) Primary oocyte. Show Answer Correct Answer: A) Secondary oocyte. 30. In what order do the following process occur?FertilizationMitosisMeiosisBirth A) FertilizationMeiosisBirthMitosis. B) MeiosisFertilizationMitosisBirth. C) MeiosisMitosisFertilizationBirth. D) BirthFertilizationMitosisMeiosis. Show Answer Correct Answer: B) MeiosisFertilizationMitosisBirth. 31. Human somatic cells have A) A haploid number of 23 chromosomes. B) A diploid number of 46 chromosomes. C) A haploid number of 46 chromosomes . D) A diploid number of 23 chromosomes. Show Answer Correct Answer: B) A diploid number of 46 chromosomes. 32. What happens during menstruation (period)? A) The lining of the uterus breaks down and is released through the vagina. B) An egg is released from the ovary. C) The embryo embeds itself into the thickened lining of the uterus. D) Semen moves from the vas deferens out of the body. Show Answer Correct Answer: A) The lining of the uterus breaks down and is released through the vagina. 33. What does the Ectoderm not give rise to? A) Skeleton. B) Hair. C) Skin. D) Nails. Show Answer Correct Answer: A) Skeleton. 34. Determine the phase of menstrual cycle which the endometrium become thickened vascular and glandular A) Secretory phase. B) Proliferative phase. C) Luteal phase. D) Follicular phase. Show Answer Correct Answer: A) Secretory phase. 35. The mature egg is released into the fallopian tube (oviduct) during which process? A) Ovulation. B) Fertilization. C) Implantation. D) Digestion. Show Answer Correct Answer: A) Ovulation. 36. Which genetic combination correctly represents a female? A) XY. B) YY. C) XX. D) XZ. Show Answer Correct Answer: C) XX. 37. Which of the following is not an accessory duct of human male reproductive system? A) Vas Deferens. B) Vasa Efferentia. C) Epididymis. D) Fallopian tube. Show Answer Correct Answer: D) Fallopian tube. 38. Mitotic division in zygote as it moves through the isthmus of the oviduct is called:[ A) Trophoblast. B) Multiple fission. C) Binary fission. D) Cleavage. Show Answer Correct Answer: D) Cleavage. 39. Which of the following have 23 pair of chromosomes A) Spermatogonia. B) Sperms. C) Ovum. D) Second polar body. Show Answer Correct Answer: A) Spermatogonia. 40. An increase in FSH may also indicate a reduction in the production of good quality eggsand embryos for ..... A) Fertilization. B) Menstruation. C) Ovulation. D) All of the choices. Show Answer Correct Answer: A) Fertilization. 41. Where are the fem. reproductive organs located? A) In the highest abdomen. B) In the lower abdomen. C) No of the above. D) None of the above. Show Answer Correct Answer: B) In the lower abdomen. 42. Identify the following body changes during puberty:Having excessive sweating A) Boys ONLY. B) BOTH boys and Girls. C) Girls ONLY. D) None of the above. Show Answer Correct Answer: B) BOTH boys and Girls. 43. The sudden rise in LH leads to A) Folliculogenesis. B) Menstruation. C) Ovulation. D) Implantation. Show Answer Correct Answer: C) Ovulation. 44. Which among the following has 23 chromosomes? A) Secondary oocyte. B) Spermatogonia. C) Zygote. D) Oogonia. Show Answer Correct Answer: A) Secondary oocyte. 45. The process when a woman's egg and a man's sperm join to form a zygote is named: A) Fertilization. B) Cell specialization. C) Embryo. D) Cell division. Show Answer Correct Answer: A) Fertilization. 46. After fertilisation, the new cell produced is known as ..... A) Embryo. B) Zygote. C) Ovum. D) Foetus. Show Answer Correct Answer: B) Zygote. 47. What allows oxygen and other nutrients to travel from the mothers blood to the baby? A) The placenta. B) The cervix. C) The uterus. D) The oviduct. Show Answer Correct Answer: A) The placenta. 48. Which one of the following statements about morula in humans is correct? (NEET-2010) A) It has equal quantity of cytoplasm as uncleaved zygote but much more DNA. B) It has far less cytoplasm as well as less DNA than in an uncleaved zygote. C) It has more or less equal quantity of cytoplasm and DNA as uncleaved zygote. D) It has moe cytoplasm and more DNA than an uncleaved zygote. Show Answer Correct Answer: A) It has equal quantity of cytoplasm as uncleaved zygote but much more DNA. 49. Which one is odd from the following structures with reference to the male reproductive system. A) Rete testis. B) Vasa efferentia. C) Isthmus. D) Epididymis. Show Answer Correct Answer: C) Isthmus. 50. During the menstrual cycle, day 14 is when A) The period ends. B) The period starts. C) Ovulation occurs. D) She is not likely to become pregnant. Show Answer Correct Answer: C) Ovulation occurs. 51. Shortly before menstruation the blood level of A) Estrogen and progestrone decrease. B) Estrogen and progestrone increse. C) Fsh stabilise. D) Only progestrone increse. Show Answer Correct Answer: A) Estrogen and progestrone decrease. 52. Egg is liberated from ovary in A) Primary oocyte stage. B) Oogonial stage. C) Mature ovum stage. D) Secondary oocyte stage. Show Answer Correct Answer: D) Secondary oocyte stage. 53. Which part of the sperm plays an important role in penetrating the egg membrane? A) Allosome. B) Tail. C) Acrosome. D) Autosome. Show Answer Correct Answer: C) Acrosome. 54. ..... cells inside seminiferous tubules provide nutrition to spermatids, that later becomes sperms. A) Tapetum. B) Sertoli cells. C) Leydig cells. D) FSH. Show Answer Correct Answer: B) Sertoli cells. 55. When is an embryo formed? A) When the nervous system begins to develop. B) At the moment of fertilization. C) When the follicles form in the ovary. D) When cells in the blastocyst differentiate. Show Answer Correct Answer: D) When cells in the blastocyst differentiate. 56. Capacitation refers to change in the A) Sperm after fertilisation. B) Ovum before fertilisation. C) Ovum after fertilisation. D) Sperm before fertilisation. Show Answer Correct Answer: D) Sperm before fertilisation. 57. Site of fertilization in human female is A) Isthmus. B) Ampullary-isthmic junction. C) Infundibulum. D) Ampulla. Show Answer Correct Answer: B) Ampullary-isthmic junction. 58. What is the female gamete in humans called? A) Embryo. B) Ova. C) Ovary. D) Ovule. Show Answer Correct Answer: B) Ova. 59. Role of leyidgs cell is A) Nourishment of sperm. B) Provide motility to sperm. C) Bring about maturation of sperm. D) Synthesis of testosterone/ androgen harmone. Show Answer Correct Answer: D) Synthesis of testosterone/ androgen harmone. 60. Spermiogenesis refers to A) Phase of multiplication of spermatogenesis. B) Growth phase of spermatogenesis. C) Metamorphosis is spermatidz into sperms. D) Formation of spermatids. Show Answer Correct Answer: C) Metamorphosis is spermatidz into sperms. ← 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