This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 3 Human Reproduction – Quiz 72 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 3 Human Reproduction Quiz 72 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. After ovulation, in a female mammal, the structure which is formed by the ruptured follicle: A) Placenta. B) Graafian follicle. C) Corpus luteum. D) Epididymis. Show Answer Correct Answer: C) Corpus luteum. 2. Which of these changes occur only in girls during puberty? A) Hair grows in the armpits. B) Body starts to produce sex cells and hormones. C) Hips are broader and rounder. D) Voice box enlarges. Show Answer Correct Answer: C) Hips are broader and rounder. 3. The main cause of the disintegration of the endometrial lining A) LH surge. B) Degeneration of corpus luteum. C) Ovulation during mid-cycle. D) Implantation lead to pregnancy. Show Answer Correct Answer: B) Degeneration of corpus luteum. 4. The function of Sertoli cells is to A) Secrete hormones. B) Produce spermatogonia. C) Nourish spermatids. D) Transport sperms. Show Answer Correct Answer: C) Nourish spermatids. 5. What happens to the corpus luteum if the egg is not fertilised? A) It breaks down. B) It grows bigger. C) No change occurs. D) It divides. Show Answer Correct Answer: A) It breaks down. 6. Solid ball like sructure formed after completion of cleavage A) Blastula. B) Morula. C) Neural plate. D) Gastrula. Show Answer Correct Answer: B) Morula. 7. The lutein cell secrete A) Lutenising hormone. B) FSH. C) Progesterone. D) Estrogen. Show Answer Correct Answer: C) Progesterone. 8. The sex chromosomes of females are ..... and the sex chromosomes of males are ..... A) XY, XX. B) XX, XY. C) XX, XX. D) YY, YY. Show Answer Correct Answer: B) XX, XY. 9. When an egg cell fuses with a sperm cell, it is called ..... A) Sex. B) Fertilisation. C) Puberty. D) None of the above. Show Answer Correct Answer: B) Fertilisation. 10. Zygote $\rightarrow$ embryo $\rightarrow$ ..... A) Foetus. B) Baby. C) Parent. D) Ovum. Show Answer Correct Answer: A) Foetus. 11. Exposure to toxins during early stages of pregnancy is more likely to cause birth defects than exposure in late pregnancy because A) Essential organs form early in development. B) The uterus provides more protection later in pregnancy. C) The placenta forms late in pregnancy. D) Meiosis happens rapidly early in pregnancy. Show Answer Correct Answer: A) Essential organs form early in development. 12. At the end of first meiotic division male germ cell differentiates into A) Primary spermatocyte. B) Secondary spermatocyte. C) Spermatid. D) Spermatogonia. Show Answer Correct Answer: B) Secondary spermatocyte. 13. Outer most layer of egg is known as A) Corona radiate. B) Zona pellucid. C) Vitelline membrane. D) NOTA. Show Answer Correct Answer: A) Corona radiate. 14. The process of attachment of blastocyst to endometrium A) Hatching. B) Blastulation. C) Implantation. D) Gestation. Show Answer Correct Answer: C) Implantation. 15. In which sex menstrual cycle occur ..... A) Male. B) Female. C) Unisex. D) No sex. Show Answer Correct Answer: B) Female. 16. SIGNAL FOR FETAL EJECTION REFLEX IS ORIGINATED FROM A) MATURE FETUS AND PLACENTA. B) UTERUS. C) MYOMETRIUM. D) ENDOMETRIUM. Show Answer Correct Answer: A) MATURE FETUS AND PLACENTA. 17. How often does the menstrual cycle occur? A) Once a week. B) Once a year. C) Once a month. D) Everyday. Show Answer Correct Answer: C) Once a month. 18. The function of LH in males is to help in ..... A) Androgen secretion by Leydig cells. B) Development of sertoli cells to provide nutrition to spermatids. C) All the above. D) None of the above. Show Answer Correct Answer: A) Androgen secretion by Leydig cells. 19. How long does the female approximately carry a child in the womb for? A) 12 months. B) 9 years. C) 9 Months. D) I don't know?. Show Answer Correct Answer: C) 9 Months. 20. ( ) is the joining of the egg and sperm. A) Conception. B) Convection. C) Connection. D) Complexion. Show Answer Correct Answer: A) Conception. 21. When an ovum is first fertilized it is known as A) A nucleus. B) An embryo. C) A zygote. D) A fetus. Show Answer Correct Answer: C) A zygote. 22. The cervix separates: A) Fallopian tube & Uterus. B) Vagina & Fallopian tube. C) Uterus & Vagina. D) Vagina & Outside body. Show Answer Correct Answer: C) Uterus & Vagina. 23. The fertilized cell that is dividing up till 8 weeks of lie A) Zygote. B) Embryo. C) Fetus. D) None of the above. Show Answer Correct Answer: B) Embryo. 24. The time in a woman's life when menstruation usually no longer occurs A) Late 50s. B) Mid 40s. C) Early 20s. D) Teens. Show Answer Correct Answer: A) Late 50s. 25. The age when secondary sexual characteristics are formed and the ability to reproduce is achieved is called A) Oogenesis. B) Ovulation. C) Puberty. D) Menstrual cycle. Show Answer Correct Answer: C) Puberty. ← 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