This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 1 Reproduction In Organisms – Quiz 8 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 1 Reproduction In Organisms Quiz 8 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. In flowering plants, the unisexual male flower is called A) Staminate. B) Monoecious. C) Dioecious. D) Pistillate. Show Answer Correct Answer: A) Staminate. 2. In which of the following water is essential for fertilization- A) Algae. B) Bryophytes. C) Pteridophytes. D) All. Show Answer Correct Answer: D) All. 3. If the number of chromosomes in the gamete of Rat is 21, then its meiocyte will have ..... number of chromosomes. A) 21. B) 10. C) 7. D) 42. Show Answer Correct Answer: D) 42. 4. Male and female flowers are present on same plant in all of these, except A) Maize. B) Coconuts. C) Cucurbits. D) Date palm. Show Answer Correct Answer: D) Date palm. 5. Which of the following animals do not show parthenogenesis? A) Honey bee. B) Rotifers. C) Ants. D) None of the above. Show Answer Correct Answer: C) Ants. 6. Sexual reproduction involves fusion of: A) Two gametes. B) Two zygotes. C) Two buds. D) Two stems. Show Answer Correct Answer: A) Two gametes. 7. Which phrases best identify characteristics of asexual reproduction? A) One parent, union of gametes, offspring similar to but not genetically identical to the parent. B) One parent, no union of gametes, offspring genetically identical to parents. C) Two parents, union of gametes, offspring similar to but not genetically identical to parents. D) Two parents, no union of gametes, offspring genetically identical to parents. Show Answer Correct Answer: B) One parent, no union of gametes, offspring genetically identical to parents. 8. A few statements with regard to sexual reproduction are given below:(i) Sexual reproduction does not always require two individuals(ii) Sexual reproduction generally involves gametic fusion(iii) Meiosis never occurs during sexual reproduction(iv) External fertilisation is a rule during sexual reproductionChoose the correct statements from the options below. A) (i) and (iv). B) (i) and (ii). C) (ii) and (iii). D) (i) and (iv). Show Answer Correct Answer: B) (i) and (ii). 9. Development of embryos without fertilization is known as ..... A) Parthenoperesis. B) Parthenogenesis. C) Reproduction. D) Parthenocarpy. Show Answer Correct Answer: B) Parthenogenesis. 10. What is the purpose of seed formation for a plant? A) To produce flowers. B) To develop into a new plant. C) To store energy. D) To attract pollinators. Show Answer Correct Answer: B) To develop into a new plant. 11. When a sea star breaks into fragments, each fragment develops into a new individual. This is an example of ..... answer choices A) Vegetative propagation. B) Parthenogenesis. C) Fragmentation. D) Binary fission. Show Answer Correct Answer: C) Fragmentation. 12. Haploid parent produces gamete by A) Meiosis. B) Mitosis. C) Amitosis. D) Both meiosis and mitosis. Show Answer Correct Answer: B) Mitosis. 13. In which reproduction is variation not seen? A) Fertilisation. B) Cross-pollination. C) Sexual. D) Asexual. Show Answer Correct Answer: D) Asexual. 14. All of the offspring of an organism have the same genetic material, which is identical to the parent organism? A) Makes its own food. B) Goes away. C) Live in a marine habitat. D) Reproduces asexually. Show Answer Correct Answer: D) Reproduces asexually. 15. Reproduction in which only one parent is involved is called? A) Internal. B) Sexual. C) Asexual. D) External. Show Answer Correct Answer: C) Asexual. 16. Zygote is formed as a result of: A) Fission. B) Fertilisation. C) Vegetative propagation. D) Budding. Show Answer Correct Answer: B) Fertilisation. 17. Which pair is incorrect A) Zoospores-chlamydomonas. B) Conidia-pencillium. C) Bulbil-agave. D) Offset-sponge. Show Answer Correct Answer: D) Offset-sponge. 18. A new organism that results from budding that remains attached to its parent starts to form a ..... A) Group. B) Family. C) House. D) Colony. Show Answer Correct Answer: D) Colony. 19. The primary male hormone is A) Estrogen. B) FSH. C) Testosterone. D) Progesterone. Show Answer Correct Answer: C) Testosterone. 20. Which of the following types of organisms lack genetic variation? A) Bacteria. B) Dogs. C) Trees. D) Humans. Show Answer Correct Answer: A) Bacteria. 21. 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. 22. 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. 23. GAMETES ARE ALWAYS? A) HAPLOID. B) DIPLOHAPLOID. C) DIPLOID. D) HAPLODIPLOID. Show Answer Correct Answer: A) HAPLOID. 24. What is the result of the combination of sperm and egg cells in sexual reproduction? A) Blastocyst. B) Embryo. C) Zygote. D) Fetus. Show Answer Correct Answer: C) Zygote. 25. Which of the following terms means "a cell that does not have a nucleus" ? A) Eukaryotic. B) Protista. C) Prokaryotic. D) Archaea. Show Answer Correct Answer: C) Prokaryotic. 26. In the life span of which group of plants, vegetative, reproductive and senescent are clearly distinct? A) Perennial plants. B) More than option is correct. C) Biennial plants. D) Annual plants. Show Answer Correct Answer: B) More than option is correct. 27. 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) II, IV are correct. C) III, IV are correct. D) I, III are correct. Show Answer Correct Answer: C) III, IV are correct. 28. 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. 29. 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. 30. What do you call the cells that have pairs of chromosomes?answer choices A) Haploid. B) Egg cell. C) Sperm cell. D) Diploid. Show Answer Correct Answer: D) Diploid. 31. 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. 32. 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. 33. 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. 34. Leaf buds are found in A) Phacus. B) Bryophyllum. C) Tubifera. D) Triceratium. Show Answer Correct Answer: B) Bryophyllum. 35. Select the correctly matched pair: A) Fission:Hydra. B) Gemmules:Sponges. C) Fragmentation:Plasmodium. D) Zoosopores:Penicillium. Show Answer Correct Answer: B) Gemmules:Sponges. 36. Haploid numbers of chromosomes are usually found in the ..... of an organism. A) Zygotes. B) Body cells. C) Sex cells. D) Tissue. Show Answer Correct Answer: C) Sex cells. 37. How many chromosomes are found in sex cells? A) 12. B) 23. C) 46. D) 96. Show Answer Correct Answer: B) 23. 38. What is the name of the reproductive cells that unite in sexual reproduction? A) Somatic cells. B) Gametes. C) Zygotes. D) Chromosomes. Show Answer Correct Answer: B) Gametes. 39. Which plant reproduces vegetatively by roots? A) Onion. B) Dahlia. C) Bryophyllum. D) Oxalis. Show Answer Correct Answer: B) Dahlia. 40. A cell that has a full set of chromosomes is called a ..... cell. A) Haploid. B) Hetrolpoid. C) Triploid. D) Diploid. Show Answer Correct Answer: D) Diploid. 41. Human gametes differ from all other body cells in being A) Haploid. B) Diploid. C) Motile. D) Without cell wall. Show Answer Correct Answer: A) Haploid. 42. Thallus refers to A) Gametes. B) Meiocytes. C) Male and female reproductive organs. D) Plant body. Show Answer Correct Answer: D) Plant body. 43. A five-armed sea star is cut into five equal pieces. How many sea stars will regenerate? A) 6. B) 5. C) 3. D) 4. Show Answer Correct Answer: B) 5. 44. .Identify the incorrect statement regarding parthenogenesis. A) Amphitoky is a type of natural parthenogenesis. B) Development of sperm without fertilization. C) It was first discovered by Charles Bonnet. D) Honey bees exhibit incomplete parthenogenesis. Show Answer Correct Answer: B) Development of sperm without fertilization. 45. An example of selective breeding is A) A dog breeder mating 2 dogs to make more dogs. B) A farmer grows bees to pollinate the plants on his farm. C) A person pollinates 2 white rose plants to only create white roses. D) None of the above. Show Answer Correct Answer: C) A person pollinates 2 white rose plants to only create white roses. 46. In haplontic organisms, zygote undergoes ..... to maintain same number of chromososmes between generations. A) Meiosis. B) Mitosis. C) All the above. D) None of the above. Show Answer Correct Answer: A) Meiosis. 47. One cell that undergoes meiosis will yield how many independent cells? A) 1. B) 4. C) 2. D) 3. Show Answer Correct Answer: B) 4. 48. What is the limitation of asexual mode of reproduction? A) It does not allow for the production of new generations. B) It does not generate variations in populations. C) It is a slow process of making variants. D) It messes up the control of the cellular apparatus by the DNA. Show Answer Correct Answer: B) It does not generate variations in populations. 49. Runners are ..... A) Swollen underground roots. B) Modified buds. C) Horizontal stems that grow above ground and form new plants. D) Potato plants. Show Answer Correct Answer: C) Horizontal stems that grow above ground and form new plants. 50. Which of the following did NOT descend from one type of mustard plant? A) Broccoli. B) Kale. C) Cabbage. D) Lettuce. Show Answer Correct Answer: D) Lettuce. 51. The plant which flowers once in twelve years is: A) Strobilanthus kunthiana. B) Strobilithus kunthiana. C) Strobilanthus kunthana. D) None of the above. Show Answer Correct Answer: A) Strobilanthus kunthiana. 52. If the number of chromosomes in the gamete of housefly is 6, what is the no. of chromosomes in the meiocyte? A) 12. B) 6. C) 24. D) 3. Show Answer Correct Answer: A) 12. 53. Macronucleus and micronucleus are present in A) Paramecium. B) Aurelia. C) Planaria. D) Euglena. Show Answer Correct Answer: A) Paramecium. 54. What is the importance or reproduction? A) It ensures that no more offsprings are produced. B) It helps to extinct a specie. C) Living organisms can have fun. D) It ensures continued existence of species. Show Answer Correct Answer: D) It ensures continued existence of species. 55. How do bacteria reproduce? A) Runners. B) Regeneration. C) Binary fission. D) Budding. Show Answer Correct Answer: C) Binary fission. 56. In maize, a meiocyte has 20 chromosomes. What will be the number of chromosomes in its somatic cell? A) 30. B) 20. C) 10. D) 40. Show Answer Correct Answer: B) 20. 57. A diploid parent plant body produces ..... gametes and a haploid parent plant body produces ..... gametes. A) Haploid, diploid. B) Diploid, diploid. C) Diploid, haploid. D) Haploid, haploid. Show Answer Correct Answer: D) Haploid, haploid. 58. Offspring formed by asexual method of reproduction have greater similarity among themselves because (i) asexual reproduction involves only one parent (ii) asexual reproduction does not involve gametes (iii) asexual reproduction occurs before sexual reproduction (iv) asexual reproduction occurs after sexual reproduction A) (i) and (ii). B) (i) and (iii). C) (ii) and (iv). D) (iii) and (iv). Show Answer Correct Answer: A) (i) and (ii). 59. Which animals reproduce by exogenous budding? A) Sponges. B) Leucosolenia. C) Hydra. D) Euglena. Show Answer Correct Answer: C) Hydra. 60. True or False:Fission is a way to reproduce asexually. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. ← 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 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 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books