This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Each human skin cell has ..... of chromosomes. A) 13. B) 23. C) 46. D) 92. Show Answer Correct Answer: C) 46. 2. A new organism that results from budding that remains attached to its parent starts to form a ..... A) Colony. B) House. C) Family. D) Group. Show Answer Correct Answer: A) Colony. 3. The primary male hormone is A) Testosterone. B) Estrogen. C) Progesterone. D) FSH. Show Answer Correct Answer: A) Testosterone. 4. Which of the following types of organisms lack genetic variation? A) Dogs. B) Humans. C) Trees. D) Bacteria. Show Answer Correct Answer: D) Bacteria. 5. Gametes always possess diploid number of chromosomes. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. Which of the following plants do not show clear cut vegetative, reproductive andsenescent phase? A) Perennial plants. B) Annual plants. C) Biennial plants. D) Either b or c. Show Answer Correct Answer: A) Perennial plants. 7. The air tubes in Cockroaches is called as ..... A) Spiracles. B) Trachea. C) All the above. D) None of the above. Show Answer Correct Answer: B) Trachea. 8. GAMETES ARE ALWAYS? A) DIPLOID. B) HAPLOID. C) HAPLODIPLOID. D) DIPLOHAPLOID. Show Answer Correct Answer: B) HAPLOID. 9. Appearance of vegetative propagules from the nodes of plants such as sugarcane and ginger is mainly because of A) Nodes are shorter than internodes. B) Nodes have meristematic cells. C) Nodes are located near the soil. D) Nodes have non-photosynthetic cells. Show Answer Correct Answer: B) Nodes have meristematic cells. 10. What is the result of the combination of sperm and egg cells in sexual reproduction? A) Fetus. B) Embryo. C) Blastocyst. D) Zygote. Show Answer Correct Answer: D) Zygote. 11. Which of the following terms means "a cell that does not have a nucleus" ? A) Prokaryotic. B) Eukaryotic. C) Protista. D) Archaea. Show Answer Correct Answer: A) Prokaryotic. 12. In the life span of which group of plants, vegetative, reproductive and senescent are clearly distinct? A) Annual plants. B) Biennial plants. C) Perennial plants. D) More than option is correct. Show Answer Correct Answer: D) More than option is correct. 13. Choose the correct optionsI. Gametes are always produced from diploid parent plant body.II. Meiocytes are sporophytes in all plants.III. The gymnosperms and pteriodophytes have diploid parent body.IV. In seed plants, pollen grains are carrier of male gametes. A) I, II are correct. B) III, IV are correct. C) I, III are correct. D) II, IV are correct. Show Answer Correct Answer: B) III, IV are correct. 14. Amphibians and fish undergo this type of fertilization. A) Internal Fertilization. B) External Fertilization. C) All the above. D) None of the above. Show Answer Correct Answer: B) External Fertilization. 15. In which type of parthenogenesis, only males are produced. A) Arrhenotoky. B) Thelytoky. C) Amphitoky. D) Both a and b. Show Answer Correct Answer: A) Arrhenotoky. 16. What do you call the cells that have pairs of chromosomes?answer choices A) Diploid. B) Haploid. C) Sperm cell. D) Egg cell. Show Answer Correct Answer: A) Diploid. 17. What is asexual reproduction in which offspring grow from a part of a parent plant called? A) Vegetative reproduction. B) Asexual reproduction. C) Fragmentation reproduction. D) None of the above. Show Answer Correct Answer: A) Vegetative reproduction. 18. Monoecious plants means(A) Only male flowers are present in the plant. (B) Only female flowers are present in the plant. (C) Bisexual flowers are present in the plants. (D) Separate male and female flowers are present in the same plant. A) Only A. B) Only D. C) Only C. D) C and D both. Show Answer Correct Answer: D) C and D both. 19. Study the statements carefully and identify which one is most correct in it's meaning. A) Homothallic = Monoecious = Bisexual. B) Heterothallic = Monoecious = Bisexual. C) Homothallic = Dioecious = Unisexual. D) Heterothallic = Monoecious = Unisexual. Show Answer Correct Answer: A) Homothallic = Monoecious = Bisexual. 20. Which of these is not a type of asexual reproduction? A) Budding. B) Fission. C) Grafting. D) Spore formation. Show Answer Correct Answer: C) Grafting. 21. Leaf buds are found in A) Tubifera. B) Bryophyllum. C) Phacus. D) Triceratium. Show Answer Correct Answer: B) Bryophyllum. 22. Select the correctly matched pair: A) Zoosopores:Penicillium. B) Gemmules:Sponges. C) Fission:Hydra. D) Fragmentation:Plasmodium. Show Answer Correct Answer: B) Gemmules:Sponges. 23. Haploid numbers of chromosomes are usually found in the ..... of an organism. A) Tissue. B) Body cells. C) Sex cells. D) Zygotes. Show Answer Correct Answer: C) Sex cells. 24. How many chromosomes are found in sex cells? A) 46. B) 12. C) 23. D) 96. Show Answer Correct Answer: C) 23. 25. What is the name of the reproductive cells that unite in sexual reproduction? A) Chromosomes. B) Somatic cells. C) Gametes. D) Zygotes. Show Answer Correct Answer: C) Gametes. ← PreviousNext →Related QuizzesClass 12 Biology Chapter 1 Reproduction In Organisms Quiz 1Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 2Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 3Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 4Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 5Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 6Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 7Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 8Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 9Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books