This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 7 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 7 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Earthworm is a ..... organism. A) Unisexual. B) Bisexual. C) Unisexual and dioecious. D) Bisexual and monoecious. Show Answer Correct Answer: D) Bisexual and monoecious. 2. Fertilisation is internal in A) Toads. B) Frogs. C) Dog fish. D) Cat fish. Show Answer Correct Answer: C) Dog fish. 3. Organisms reproducing throughout the year are called ..... breeders. A) Continuous. B) Discontinuous. C) Seasonal. D) Apiculture. Show Answer Correct Answer: A) Continuous. 4. The ovule after fertilization changed to A) Fruit. B) Seed. C) Endosperm. D) Zygote. Show Answer Correct Answer: B) Seed. 5. The period from birth to the natural death of an organism represents- A) Reproductive phase. B) Life cycle. C) Life span. D) Life style. Show Answer Correct Answer: C) Life span. 6. Rotifers, honey bees, turkeys A) Produce gamete bymitosis. B) Monoecious or dioecious. C) Exhibit adult reproductive structures in juvenile phase. D) Produce youngones by parthenogenesis. Show Answer Correct Answer: D) Produce youngones by parthenogenesis. 7. The wall of the ovary forms A) Pericarp. B) Fruit wall. C) Fruit. D) Both (a) and (b). Show Answer Correct Answer: D) Both (a) and (b). 8. The male gamete of rice plant has 12 chromosomes in their nucleus. The chromosome number in the female gamete, zygote and the cells of the seedling will be, respectively A) 12, 24, 12. B) 24, 12, 12. C) 12, 24, 24. D) 24, 12, 24. Show Answer Correct Answer: C) 12, 24, 24. 9. Terror of Bengal is a weed namely A) Parthenium. B) Xanthium. C) Eichhornia. D) Oak. Show Answer Correct Answer: C) Eichhornia. 10. Stem cuttings are commonly used for the propagation of A) Banana. B) Rose. C) Cotton. D) Mango. Show Answer Correct Answer: B) Rose. 11. What is the main disadvantage of asexual reproduction? A) Genetic diversity. B) Efficiency. C) Complex process. D) Requires two organisms. Show Answer Correct Answer: A) Genetic diversity. 12. Match each term with the correct description below.sex cells from female reproductive organ A) Zygote. B) Eggs. C) Sperm. D) Fertilization. Show Answer Correct Answer: B) Eggs. 13. What is the name of the reproductive cells that have half the number of chromosomes as a somatic cell? A) Sperm and egg cells. B) Zygotes. C) Chromosomes. D) Gametes. Show Answer Correct Answer: A) Sperm and egg cells. 14. During encystment, Amoeba secretes a cyst wall of A) One layer. B) Two layer. C) Three layers. D) Four layers. Show Answer Correct Answer: C) Three layers. 15. A population of thermophilic archaebacteria are generally found in hot springs. Any change to the temperature of the water affects the survival of the archaeabacteria. If the temperature of hot springs gets reduced, change in which component can allow survival of few members of these archaeabacteria? A) Cell wall. B) Cytoplasm. C) DNA. D) Ribosomes. Show Answer Correct Answer: C) DNA. 16. Which cell division leads to gamete formation? A) Mitosis. B) Binary fission. C) Meiosis. D) Amitosis. Show Answer Correct Answer: C) Meiosis. 17. Match each term with the correct description below.joining of two sex cells A) Zygote. B) Mitosis. C) Meiosis. D) Fertilization. Show Answer Correct Answer: D) Fertilization. 18. Which of the following types of asexual reproduction is noticed in Amoeba? A) Sporulation. B) Encystment. C) Binary fission. D) All the above. Show Answer Correct Answer: D) All the above. 19. Which of the following statements about gametogenesis is FALSE? A) Production of diploid cells. B) Production of haploid cells. C) Seen in plants and animals. D) Mother cells are called as meiocytes. Show Answer Correct Answer: B) Production of haploid cells. 20. Which statement describes why genetic variation is beneficial to populations of organisms?answer choices A) Individuals look different from one another. B) Only one parent is needed to produce offspring. C) Populations of the organism increase more rapidly. D) Species can better survive environmental changes. Show Answer Correct Answer: D) Species can better survive environmental changes. 21. Binary fission is a method of reproduction in: A) Amoeba. B) Hydra. C) Yeast. D) Earthworm. Show Answer Correct Answer: A) Amoeba. 22. "How organisms reproduce" -depends upon- A) Habitat of organisms. B) Internal physiology of organisms. C) Genetic make up. D) All of the above factors. Show Answer Correct Answer: D) All of the above factors. 23. Plasmotomy is seen in A) Opalina. B) Sponges. C) Aurelia. D) Euglena. Show Answer Correct Answer: A) Opalina. 24. What is the name of the process where gametes are made with half the number of chromosomes? A) Blastocyst formation. B) Fertilization. C) Meiosis. D) Mitosis. Show Answer Correct Answer: C) Meiosis. 25. The process of development of embryo from zygote is called: A) Fertilisation. B) Embryogenesis. C) Implantation. D) Pollination. Show Answer Correct Answer: B) Embryogenesis. ← 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 8Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 9Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 10Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books