This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 3 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 3 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What is the word Syngamy means A) Egg cell. B) Ovulation. C) Fusion of male and female gamete. D) None of these. Show Answer Correct Answer: C) Fusion of male and female gamete. 2. Pollination by ants is A) Myrmecophily. B) Malacophily. C) Entomophily. D) Ornithophily. Show Answer Correct Answer: A) Myrmecophily. 3. How many cells are produced by a reproductive cell during meiosis? A) 2 cells. B) 5 cells. C) 4 cells. D) 3 cells. Show Answer Correct Answer: C) 4 cells. 4. What is the significance of sexual mode of reproduction? A) It allows for the production of new generations without the involvement of two individuals. B) It ensures the survival of the species by generating variations. C) It speeds up the process of making variants. D) It helps in the control of the cellular apparatus by the DNA. Show Answer Correct Answer: B) It ensures the survival of the species by generating variations. 5. In which of the following plants, sepals do not fall off after fertilisation and remain attached to the fruit? A) Papaya. B) Cucumber. C) Bitter gourd. D) Brinjal. Show Answer Correct Answer: D) Brinjal. 6. Hydra produce offspring by growing the new individual on the body of the parent. This is an example of ..... answer choices A) Budding. B) Tubers. C) Fission. D) Regeneration. Show Answer Correct Answer: A) Budding. 7. Which of the following plant flowers once in 12 years? A) Mangifera indica. B) Helianthus annus. C) Papver somniferum. D) Strobilanthus kunthiana (Neelakuranji). Show Answer Correct Answer: D) Strobilanthus kunthiana (Neelakuranji). 8. Which of the following is not correct regarding sexual reproduction? A) It is usually biparental. B) Gametes are always formed. C) It is a slow process. D) It involves only mitosis. Show Answer Correct Answer: D) It involves only mitosis. 9. Life begin in all sexually reproducing organisms as a A) Haploid zygote. B) Haploid gametes. C) Single celled zygote. D) Double celled zygote. Show Answer Correct Answer: C) Single celled zygote. 10. Which of these animals has highest lifespan? A) Tortoise. B) Elephant. C) Human. D) Horse. Show Answer Correct Answer: A) Tortoise. 11. Ginger is vegetatively propagated through A) Bulbil. B) Offset. C) Eyes. D) Rhizome. Show Answer Correct Answer: D) Rhizome. 12. Gametogenesis refers to the process of A) Fusion of two gametangia. B) Formation of two types of gametes. C) Formation of male gametes. D) Fusion of two gametes. Show Answer Correct Answer: B) Formation of two types of gametes. 13. How many times does a body cell divide during mitosis? A) 3. B) 2. C) 0. D) 1. Show Answer Correct Answer: D) 1. 14. Type of reproduction that as the greatest chance of surviving a disaster.answer choices A) Sexual. B) Asexual. C) Polygenic. D) Monolinguistic. Show Answer Correct Answer: A) Sexual. 15. Earthworm is a ..... organism. A) Unisexual. B) Bisexual. C) Unisexual and dioecious. D) Bisexual and monoecious. Show Answer Correct Answer: D) Bisexual and monoecious. 16. Fertilisation is internal in A) Dog fish. B) Toads. C) Cat fish. D) Frogs. Show Answer Correct Answer: A) Dog fish. 17. Organisms reproducing throughout the year are called ..... breeders. A) Apiculture. B) Discontinuous. C) Continuous. D) Seasonal. Show Answer Correct Answer: C) Continuous. 18. The ovule after fertilization changed to A) Zygote. B) Fruit. C) Endosperm. D) Seed. Show Answer Correct Answer: D) Seed. 19. The period from birth to the natural death of an organism represents- A) Reproductive phase. B) Life span. C) Life cycle. D) Life style. Show Answer Correct Answer: B) Life span. 20. Rotifers, honey bees, turkeys A) Monoecious or dioecious. B) Exhibit adult reproductive structures in juvenile phase. C) Produce gamete bymitosis. D) Produce youngones by parthenogenesis. Show Answer Correct Answer: D) Produce youngones by parthenogenesis. 21. 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). 22. 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) 24, 12, 24. B) 24, 12, 12. C) 12, 24, 12. D) 12, 24, 24. Show Answer Correct Answer: D) 12, 24, 24. 23. Terror of Bengal is a weed namely A) Xanthium. B) Parthenium. C) Eichhornia. D) Oak. Show Answer Correct Answer: C) Eichhornia. 24. Stem cuttings are commonly used for the propagation of A) Cotton. B) Rose. C) Mango. D) Banana. Show Answer Correct Answer: B) Rose. 25. What is the main disadvantage of asexual reproduction? A) Requires two organisms. B) Efficiency. C) Genetic diversity. D) Complex process. Show Answer Correct Answer: C) Genetic diversity. 26. Match each term with the correct description below.sex cells from female reproductive organ A) Fertilization. B) Zygote. C) Eggs. D) Sperm. Show Answer Correct Answer: C) Eggs. 27. 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. 28. During encystment, Amoeba secretes a cyst wall of A) Four layers. B) One layer. C) Three layers. D) Two layer. Show Answer Correct Answer: C) Three layers. 29. 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. 30. Which cell division leads to gamete formation? A) Meiosis. B) Mitosis. C) Binary fission. D) Amitosis. Show Answer Correct Answer: A) Meiosis. 31. Match each term with the correct description below.joining of two sex cells A) Fertilization. B) Meiosis. C) Zygote. D) Mitosis. Show Answer Correct Answer: A) Fertilization. 32. 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. 33. 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. 34. Binary fission is a method of reproduction in: A) Yeast. B) Amoeba. C) Hydra. D) Earthworm. Show Answer Correct Answer: B) Amoeba. 35. "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. 36. Plasmotomy is seen in A) Opalina. B) Aurelia. C) Sponges. D) Euglena. Show Answer Correct Answer: A) Opalina. 37. What is the name of the process where gametes are made with half the number of chromosomes? A) Meiosis. B) Blastocyst formation. C) Mitosis. D) Fertilization. Show Answer Correct Answer: A) Meiosis. 38. The process of development of embryo from zygote is called: A) Implantation. B) Fertilisation. C) Pollination. D) Embryogenesis. Show Answer Correct Answer: D) Embryogenesis. 39. What is the main benefit of asexual reproduction? A) Genetic diversity. B) Complex process. C) Efficiency. D) Requires two organisms. Show Answer Correct Answer: C) Efficiency. 40. What is the male reproductive part of a flower called? A) Ovary. B) Stigma. C) Style. D) Stamen. Show Answer Correct Answer: D) Stamen. 41. How many times does a reproductive cell divide during meiosis? A) 4. B) 2. C) 3. D) 1. Show Answer Correct Answer: B) 2. 42. The chromatids line up in this phase of meiosis. A) Anaphase II. B) Telophase II. C) Metaphase II. D) Prophase II. Show Answer Correct Answer: C) Metaphase II. 43. What is the process called when gametes are made in sexual reproduction? A) Crossing over. B) Fertilization. C) Mitosis. D) Meiosis. Show Answer Correct Answer: D) Meiosis. 44. What is a ciliated spore? A) Homospores. B) Zoospores. C) Heterospores. D) Non-motile spores. Show Answer Correct Answer: B) Zoospores. 45. Monoecious plant of Chara shows occurrence of A) Antheridiophore and Archegoniophore on the same plant. B) Stamen and Carpel on the same plant. C) Upper Antheridium and lower Oogonium on the same plant. D) Upper Oogonium and lower antheridium on the same plant. Show Answer Correct Answer: D) Upper Oogonium and lower antheridium on the same plant. 46. How many cells are produced by mitosis and cell division? A) 3. B) 2. C) 0. D) 1. Show Answer Correct Answer: B) 2. 47. In which phase of meiosis does the membrane surrounding the nucleus break apart. A) Telophase I. B) Metaphase I. C) Prophase I. D) Anaphase I. Show Answer Correct Answer: C) Prophase I. 48. The units of vegetative propagation in potato are: A) Rhizomes. B) Tubers. C) Eyes. D) Bulbs. Show Answer Correct Answer: C) Eyes. 49. What is the reproductive method observed in Spirogyra? A) Regeneration. B) Budding. C) Spore Formation. D) Fission. Show Answer Correct Answer: D) Fission. 50. What process reduces the chromosome number by half in gametes? A) Mitosis. B) Meiosis. C) Binary fission. D) Fertilization. Show Answer Correct Answer: B) Meiosis. 51. What is the process called when prokaryotes split into two? A) Budding. B) Fertilization. C) Binary fission. D) Meiosis. Show Answer Correct Answer: C) Binary fission. 52. In which method pseudopodiospores are formed? A) Multiple Fission. B) Binary Fission. C) Fragmentation. D) Budding. Show Answer Correct Answer: A) Multiple Fission. 53. Life span of tortoise is A) 25 30 yrs. B) 100 200 yrs. C) 50 75 yrs. D) 75 100 yrs. Show Answer Correct Answer: B) 100 200 yrs. 54. Which type of cells form through meiosis? A) Sex cells. B) Zygote cells. C) Epithelial cells. D) Body cells. Show Answer Correct Answer: A) Sex cells. 55. Which of the following organisms reproduces by budding? A) Hydra. B) Paramecium. C) Euglena. D) Amoeba. Show Answer Correct Answer: A) Hydra. 56. Which structure provides a surface for the settlement of pollen grains in angiosperm plants? A) Pollen tube. B) Stigma. C) Anther. D) Style. Show Answer Correct Answer: B) Stigma. 57. Select the example/s of hermaphrodite organism/s among these. A) Earthworm. B) Tapeworm. C) Leech. D) All of these. Show Answer Correct Answer: D) All of these. 58. Larvae produce new generation of larvae by A) Encystment. B) Sporulation. C) Fragmentation. D) Paedogenesis. Show Answer Correct Answer: D) Paedogenesis. 59. Gemmule is asexual reproductive structure in A) Sponge. B) Hydra. C) Potato. D) Chlamydomonas. Show Answer Correct Answer: A) Sponge. 60. A mutation is a change in an organism's ..... A) Ribosome. B) Cell. C) DNA. D) Phenotype. Show Answer Correct Answer: C) DNA. ← PreviousNext →Related QuizzesScience QuizzesClass 12 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books