This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 3 Human Reproduction – Quiz 5 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 5 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The shortest phase of the menstrual cycle is: A) Follicular phase. B) Luteal phase. C) Menses. D) Ovulatory phase. Show Answer Correct Answer: D) Ovulatory phase. 2. Which of the following statements about the menstrual cycle is false? A) Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. B) Menstruation occurs just after LH and FSH levels peak. C) Menstruation occurs after progesterone levels drop. D) Estrogen levels rise before ovulation, while progesterone levels rise after. Show Answer Correct Answer: B) Menstruation occurs just after LH and FSH levels peak. 3. What does the term Gestation mean? A) The joining of the egg and sperm. B) The time it takes for the young to develop inside the mother. C) The release of sperm. D) The release of an egg cell. Show Answer Correct Answer: B) The time it takes for the young to develop inside the mother. 4. Which hormone is responsible for thickening/maintaining the uterine lining during the menstrual cycle? A) Estrogen. B) Follicle-stimulating hormone. C) Progesterone. D) Luteinizing hormone. Show Answer Correct Answer: C) Progesterone. 5. Sexually reproducing organisms pass on genetic information as a A) Long chain of amino acids. B) Complex series of inorganic proteins. C) Sequence of complex sugars. D) Sequence of the bases A, T, C, and G. Show Answer Correct Answer: D) Sequence of the bases A, T, C, and G. 6. How many genes do the ovum and the sperm pass on to the baby? A) 34.000 different genes. B) 24.000 different genes. C) 14.000 different genes. D) None of the above. Show Answer Correct Answer: B) 24.000 different genes. 7. The hormone, testosterone, is produced by the testes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 8. The early stage of development for a fertilized egg is known as the? A) Mother. B) Embryo. C) Fetus. D) Baby. Show Answer Correct Answer: B) Embryo. 9. Long, thread like structure which contain genetic materials found in nucleus of cell called ..... A) Chromosome. B) Sperm. C) Cytoplasm. D) Gamete. Show Answer Correct Answer: A) Chromosome. 10. What is the process called when an egg and sperm fuse? A) Embryo. B) Mating. C) Zygote. D) Fertilisation. Show Answer Correct Answer: D) Fertilisation. 11. Pasangan antara bagian alat reproduksi laki-laki dan fungsinya berikut ini benar, kecuali ..... A) Skrotum berfungsi sebagai pembungkus testis. B) Tubulus seminiferus berfungsi sebagai tempat produksi sperma. C) Uretra berfungsi sebagai saluran tempat keluarnya sperma. D) Vas deferens berfungsi sebagai tempat pematangan sel sperma. Show Answer Correct Answer: D) Vas deferens berfungsi sebagai tempat pematangan sel sperma. 12. Puberty is the period when the ..... releases special hormones to work on different parts of the body. A) Progesterone. B) Pituitary gland. C) Cowper gland. D) Prostate gland. Show Answer Correct Answer: B) Pituitary gland. 13. What are chromosomes made of? A) DNA. B) Cells. C) String. D) Protein. Show Answer Correct Answer: A) DNA. 14. The mature sperms are stored in the ..... A) Seminal vesicle. B) Epididymis. C) Seminiferous tubule. D) Vas deferens. Show Answer Correct Answer: B) Epididymis. 15. Scrotum is associated with A) Pancreas. B) Liver. C) Ovary. D) Testis. Show Answer Correct Answer: D) Testis. 16. Normal menstrual or ovarian cycle occurs once in ..... days. A) 58/60. B) 28/29. C) 60/65. D) 17/18. Show Answer Correct Answer: B) 28/29. 17. Growing foetus derives nutrition from mother's blood through ..... A) Uterus. B) Fallopian tube. C) Placenta. D) Cervix. Show Answer Correct Answer: C) Placenta. 18. Male organ in which sperm and sex hormones are produced A) Penis. B) Vas Deferens. C) Testicles. D) Scrotum. Show Answer Correct Answer: C) Testicles. 19. The follicular phase of the menstrual cycle is composed of menstruation and which other stage. A) Proliferative stage. B) Luteal phase. C) Ouvlation. D) Regeneration phase. Show Answer Correct Answer: A) Proliferative stage. 20. For most females, ovulation occurs during menstruation. A) TRUE. B) FALSE. C) All the above. D) None of the above. Show Answer Correct Answer: B) FALSE. 21. Function of sertoli cells A) Production of androgens. B) Production of germ cells. C) Give nourishment to germ cells. D) None of the above. Show Answer Correct Answer: C) Give nourishment to germ cells. 22. After a zygote is formed, specialization of cells occurs. Through which process do the cells of a zygote become specialized? A) Sexual reproduction. B) Meiosis. C) Differentiation. D) Fertilization. Show Answer Correct Answer: C) Differentiation. 23. The process of formation of gametes is known as A) Fertilisation. B) Implantation. C) Insemination. D) Gametogenesis. Show Answer Correct Answer: D) Gametogenesis. 24. Assertion:In morula stage, cells divide without increase in size.Reason:Zona pellucida remain undivided till cleavage is complete. A) If both the assertion & reason are true & the reason is the correct explanation of the assertion. B) If both the assertion & reason are true & the reason is not the correct explanation of the assertion. C) If the assertion is true but the reason is false. D) If both the assertion & reason are false. Show Answer Correct Answer: B) If both the assertion & reason are true & the reason is not the correct explanation of the assertion. 25. Human gametes have A) A haploid number of 46 chromosomes. B) A diploid number of 46 chromosomes. C) A diploid number of 23 chromosomes. D) A haploid number of 23 chromosomes. Show Answer Correct Answer: D) A haploid number of 23 chromosomes. 26. Where does human fertilization tend to take place? A) Cervix. B) Uterus. C) Epididymis. D) Fallopian tube. Show Answer Correct Answer: D) Fallopian tube. 27. Which of these parts is found in both the male and female reproductive systems? A) Testis. B) Urethra. C) Uterus. D) Fallopian tube. Show Answer Correct Answer: B) Urethra. 28. What would be the result of cutting both the sperm ducts in a male animal? A) The animal would be unable to pass urine. B) The animal would become sterile. C) Male sex hormones would no longer circulate in the blood. D) The animal would be unable to develop sperms. Show Answer Correct Answer: B) The animal would become sterile. 29. What is the role of cilia in the female reproductive system? A) To move the ovum along the oviduct. B) To produce hormones. C) To nourish the foetus. D) To produce sperm. Show Answer Correct Answer: A) To move the ovum along the oviduct. 30. Which of the following statements identifies a difference between the secondary oocyte and the ovum? A) The secondary oocyte is at Metaphase II of meiosis while the ovum has completed the meiotic divisions. B) The secondary oocyte is surrounded by the zona pellucida while the ovum is not. C) The secondary oocyte is diploid while the ovum is haploid. D) The secondary oocyte has two polar bodies while the ovum has one. Show Answer Correct Answer: A) The secondary oocyte is at Metaphase II of meiosis while the ovum has completed the meiotic divisions. 31. If the epididymis is blocked, which immediate physiological effect on sperm would most likely occur? A) Sperm cannot fertilize the ovary. B) Sperm cannot form the placenta. C) Sperm cannot mature or be stored. D) Sperm cannot produce testosterone. Show Answer Correct Answer: C) Sperm cannot mature or be stored. 32. The fluid filled environment for the development of embryo in order to protect the developing foetus from physical jerks and shocks is provided by A) Amnion. B) Water. C) Amniotic Fluid. D) Placenta. Show Answer Correct Answer: C) Amniotic Fluid. 33. Which of the following is NOT an indication to the mother that labour is starting? A) Contractions of the uterine wall. B) Bursting of the amniotic sac 'Waters breaking'. C) Detaching of the unbilical cord. D) 'show' of mucus indicating that the cervix is unblocked. Show Answer Correct Answer: C) Detaching of the unbilical cord. 34. Where baby grows inside its mother body A) Fallopian tube. B) Urethra. C) Uterus (womb). D) Vagina. Show Answer Correct Answer: C) Uterus (womb). 35. Menstruation results in the discharge of A) The endometrial lining. B) The corpus luteum of the uterus. C) Blood from the outer surface of the uterus. D) Surface cells from the vagina. Show Answer Correct Answer: A) The endometrial lining. 36. Reproductive organs that produce eggs, progesterone and estrogen A) Cervix. B) Vagina. C) Ovaries. D) None of the above. Show Answer Correct Answer: C) Ovaries. 37. The food reserve in a bird egg A) Molt. B) Yolk. C) Keratin. D) Albumen. Show Answer Correct Answer: B) Yolk. 38. The primary function of the human male reproductive system is to A) Provide a site for fertilization. B) Produce and transport gametes. C) Protect and nourish the embryo. D) Prevent urine from leaving the body. Show Answer Correct Answer: B) Produce and transport gametes. 39. What temperature do sperm like best? A) Much cooler than 37$^{o}$ C. B) A little bit cooler than 37$^{o}$ C. C) 37$^{o}$ C. D) Much warmer than 37$^{o}$ C. Show Answer Correct Answer: B) A little bit cooler than 37$^{o}$ C. 40. During which process do sperm and egg fuse to form a zygote? A) Fertilization. B) Differentiation. C) Embryogenesis. D) Fragmentation. Show Answer Correct Answer: A) Fertilization. 41. The stem cells which have potency to give rise to all tissues and organs are formed from A) Inner cell mass. B) Umbilical cord. C) Placenta. D) Trophoblast. Show Answer Correct Answer: A) Inner cell mass. 42. The embryo develops in the ..... A) Vagina. B) Uterus. C) Fallopian tube. D) Ovary. Show Answer Correct Answer: B) Uterus. 43. Kangaroos are mammals that lack a placenta. Therefore, they must have an alternate way of supplying the developing embryo with A) Carbon dioxide. B) Genetic information. C) Enzymes. D) Nutrients. Show Answer Correct Answer: D) Nutrients. 44. Which hormone causes the re-growth of the endometrial lining of the uterus? A) Estrogen. B) Testesterone. C) GnRH. D) Progesterone. Show Answer Correct Answer: D) Progesterone. 45. What is the primary function of the testes? A) Produce urine. B) Produce sperm and sex hormones. C) Transport sperm to the urethra. D) Filter blood. Show Answer Correct Answer: B) Produce sperm and sex hormones. 46. Which process makes gametes for sexual reproduction? A) Mitosis. B) Meiosis. C) Fertilisation. D) Ovulation. Show Answer Correct Answer: B) Meiosis. 47. Extrusion of second polar body from egg nucleus occurs (a) after fertilisation (b) before the entry of sperm into ovum (c) simultaneously with first cleavage (d) after the entry of sperm but before fertilisation A) C. B) B. C) D. D) A. Show Answer Correct Answer: C) D. 48. Oogonia can be formed and added after birth of girl child. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 49. The after birth is when A) A second child is born. B) The woman has strong contractions. C) Placenta and umbilical cord are expelled. D) The family comes to visit the new baby. Show Answer Correct Answer: C) Placenta and umbilical cord are expelled. 50. How long is an ovum viable (able to survive) once it is released from the ovary? A) 3 days. B) 24-48 hours. C) 4 days. D) 12-24 hours. Show Answer Correct Answer: D) 12-24 hours. 51. TRUE or FLASE:All women have hymen that causes them to bleed during their 1$^{st}$ intercourse. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 52. The embryonic stage with 8-16 blastomeres is called A) Gastrula. B) Zygote. C) Morula. D) Blastocyst. Show Answer Correct Answer: C) Morula. 53. An oocyte is fertilized in the: A) Vagina. B) Urethra. C) Uterus. D) Oviduct. Show Answer Correct Answer: D) Oviduct. 54. Gastrulation comprise of A) Morphogenetic movement. B) Differentition of archenteron. C) Differnentition of three germ layers. D) All the above,. Show Answer Correct Answer: D) All the above,. 55. What area connects the vagina to the uterus? A) Endometrium. B) Cervix. C) Myometrium. D) Vulva. Show Answer Correct Answer: B) Cervix. 56. The outermost covering of the testis is formed by a dense fibrous membrane called as A) Tunica vaginalis. B) Tunica vasculosa. C) Tunica albuginea. D) None of the above. Show Answer Correct Answer: C) Tunica albuginea. 57. The sex of the fetus will be decided at(a) fertilisation by male gamete(b) implantation(c) fertilisation by female gamete(d) the start of cleavage. A) Fertilization of male gamete. B) Implantation. C) Fertilization by female gamete. D) The start of cleavage. Show Answer Correct Answer: A) Fertilization of male gamete. 58. After birth, colostrum is released from mammary glands which is rich in A) Fat and low in proteins. B) Proteins and low in fat. C) Proteins, antibodies and low in fat. D) Proteins, fat and low in antibodies. Show Answer Correct Answer: C) Proteins, antibodies and low in fat. 59. Mullerian duct is A) Oviduct. B) Cervix. C) Urethra. D) Ureter. Show Answer Correct Answer: A) Oviduct. 60. In which of the following weeks of pregnancy CVS is done? A) 12th-14th week. B) 8th-10th week. C) 5th-7th week. D) None of these. Show Answer Correct Answer: B) 8th-10th week. ← 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 6Class 12 Biology Chapter 3 Human Reproduction Quiz 7Class 12 Biology Chapter 3 Human Reproduction Quiz 8Class 12 Biology Chapter 3 Human Reproduction Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books