Class 12 Biology Chapter 1: Reproduction in Organisms – 100 MCQs with Answers
1. Reproduction is essential for:
Answer: A) Survival of species
2. The process by which living organisms produce young ones is:
Answer: B) Reproduction
3. In which of the following does reproduction not involve formation of gametes?
Answer: B) Asexual
4. Formation of new individuals from somatic cell is:
Answer: C) Asexual reproduction
5. The period from birth to natural death is:
Answer: B) Life span
6. Longest life span among the following:
Answer: C) Banyan tree
7. Which one is an annual plant?
Answer: A) Wheat
8. Amoeba reproduces by:
Answer: C) Binary fission
9. Yeast reproduces by:
Answer: A) Budding
10. Which is a vegetative propagule?
Answer: A) Bulb
11. Ginger multiplies vegetatively by:
Answer: C) Rhizome
12. Offsets occur in:
Answer: B) Water hyacinth
13. Turion is a dormant bud found in:
Answer: C) Potamogeton
14. The period of reproductive activity in organisms is called:
Answer: B) Reproductive phase
15. Period of growth before reproductive maturity is:
Answer: D) Juvenile phase
16. Oestrous cycle is found in:
Answer: A) Cow
17. Menstrual cycle occurs in:
Answer: C) Woman
18. Which of the following is a bisexual flower?
Answer: C) Hibiscus
19. In fragmentation, an organism splits into:
Answer: B) Many pieces
20. Largest number of seeds is found in:
Answer: A) Orchid
21. Pollen grains are produced by:
Answer: A) Male gametophyte
22. Fertilization is the fusion of:
Answer: B) Sperm and egg
23. The unit of vegetative propagation in potato:
Answer: C) Tuber
24. Which plant produces bulbils for vegetative propagation?
Answer: A) Agave
25. Seedless watermelon is an example of:
Answer: C) Both A and B
26. Example for monoecious plant:
Answer: B) Coconut
27. In animals, meiosis occurs during the formation of:
Answer: B) Gametes
28. Which process increases genetic variation?
Answer: C) Sexual reproduction
29. Which of the following plants propagates with leaf buds?
Answer: A) Bryophyllum
30. Hydra reproduces by:
Answer: B) Budding
31. Parthenogenesis is:
Answer: A) Development from unfertilised egg
32. Natural death after reproduction is called:
Answer: A) Senescence
33. Water hyacinth is called terror of Bengal because:
Answer: C) It multiplies rapidly
34. Elaters occur in:
Answer: C) Liverworts
35. Which is not involved in asexual reproduction?
Answer: A) Fertilization
36. Organisms which reproduce only once in their lifetime are called:
Answer: B) Semelparous
37. Main function of reproduction is:
Answer: A) Survival of species
38. Which of the following is viviparous?
Answer: C) Dog
39. Offspring formed by asexual reproduction are:
Answer: A) Genetically similar
40. Mules are:
Answer: B) Sterile
41. In a bisexual flower, both sex organs are present:
Answer: C) In one flower
42. Syngamy leads to:
Answer: A) Fusion of nuclei
43. Zoospores are:
Answer: A) Motile spores
44. In palm, the life span can be:
Answer: C) 90–100 years
45. Clones are:
Answer: A) Genetically identical
46. Reproduction involving two parents is:
Answer: B) Sexual
47. Zygote is always:
Answer: A) Unicellular
48. Which is NOT a vegetative propagule?
Answer: C) Seed
49. Internal fertilization occurs in:
Answer: C) Birds
50. Regeneration is a method by which organisms:
Answer: C) Form new individuals
51. Hydra reproduces by:
Answer: A) Budding
52. Banana is propagated by:
Answer: A) Suckers
53. Conjugation occurs in:
Answer: A) Spirogyra
54. A planarian reproduces by:
Answer: D) Regeneration
55. The process of cessation of reproductive capacity and death is:
Answer: A) Senescence
56. All offspring have genetic similarity in:
Answer: B) Asexual reproduction
57. The offspring from parthenogenesis are:
Answer: A) Haploid
58. Which is a dioecious plant?
Answer: B) Papaya
59. Example of an oviparous animal:
Answer: C) Frog
60. Neonatal period refers to:
Answer: B) Just after birth
61. Budding is seen in:
Answer: B) Yeast
62. The time period between two successive generations is:
Answer: B) Generation time
63. Binary fission in bacteria is also called:
Answer: A) Amitosis
64. Zygote is always:
Answer: A) Diploid
65. True regeneration results in:
Answer: A) New individuals
66. Which is polyembryonic naturally?
Answer: B) Citrus
67. Water hyacinth reproduces by:
Answer: B) Offsets
68. Reproduction in bacteria takes place by:
Answer: B) Binary fission
69. The reproductive phase in plants is initiated by:
Answer: A) Change in season
70. Reproduction without fertilization is:
Answer: C) Parthenogenesis
71. Which animal can reproduce both sexually and asexually?
Answer: B) Hydra
72. Suckers as vegetative propagules take place in:
Answer: A) Banana
73. Strobilation is seen in:
Answer: B) Aurelia
74. Vegetative propagation by leaves in:
Answer: A) Bryophyllum
75. Hydrilla exhibits:
Answer: C) Turion
76. Individuals produced from asexual reproduction are termed as:
Answer: B) Clone
77. Example of viviparous fish:
Answer: A) Shark
78. Plants with only male flowers are
A) Dioecious
B) Monoecious
C) Bisexual
D) Gametophyte
A) Dioecious
B) Monoecious
C) Bisexual
D) Gametophyte
Answer: A) Dioecious