Class 9 Science Chapter 11 MCQs – Reproduction: How Life Continues provides 50 important multiple-choice questions with answers to help students revise reproduction, asexual and sexual reproduction, vegetative propagation, budding, spore formation, pollination, fertilisation, seed formation and related concepts. These MCQs are useful for Class 9 Science exam preparation and concept revision.
1. What is reproduction?
A. Process of obtaining food
B. Process by which organisms produce new individuals of their own kind
C. Process of respiration
D. Process of growth only
Answer: B. Process by which organisms produce new individuals of their own kind
2. Why is reproduction important for living organisms?
A. It helps organisms breathe
B. It ensures continuity of life and species
C. It increases body temperature
D. It provides energy directly
Answer: B. It ensures continuity of life and species
3. Which are the two main modes of reproduction?
A. Growth and development
B. Sexual and asexual reproduction
C. Respiration and nutrition
D. Pollination and germination
Answer: B. Sexual and asexual reproduction
4. Asexual reproduction generally involves:
A. Two parents
B. One parent
C. Three parents
D. No parent
Answer: B. One parent
5. In asexual reproduction, offspring are generally:
A. Very different from the parent
B. Almost genetically identical to the parent
C. Always larger than the parent
D. Always smaller than the parent
Answer: B. Almost genetically identical to the parent
6. Which of the following is an example of asexual reproduction in plants?
A. Pollination
B. Fertilisation
C. Vegetative propagation
D. Seed formation
Answer: C. Vegetative propagation
7. Vegetative propagation involves the formation of new plants from:
A. Only seeds
B. Vegetative parts of a plant
C. Pollen grains only
D. Fruits only
Answer: B. Vegetative parts of a plant
8. Which of the following can be used for vegetative propagation?
A. Stem
B. Root
C. Leaf
D. All of the above
Answer: D. All of the above
9. Which method of vegetative propagation involves placing a stem or branch in contact with soil so that roots develop?
A. Layering
B. Pollination
C. Fragmentation
D. Budding
Answer: A. Layering
10. In grafting, a stem or bud from one plant is joined to:
A. A seed
B. A rooted plant of another plant
C. A pollen grain
D. A flower petal
Answer: B. A rooted plant of another plant
11. Tissue culture is useful because it can:
A. Produce many plants from a small amount of plant tissue
B. Prevent all plants from reproducing
C. Produce only seeds
D. Stop plant growth
Answer: A. Produce many plants from a small amount of plant tissue
12. Plant tissue culture can help produce:
A. Virus-free and healthy plantlets
B. Only dead plants
C. Only flowers
D. Only pollen grains
Answer: A. Virus-free and healthy plantlets
13. Which organism commonly reproduces by budding?
A. Yeast
B. Mango
C. Human
D. Frog
Answer: A. Yeast
14. In budding, a new individual develops as:
A. A seed inside the parent
B. An outgrowth or bud on the parent
C. A pollen grain
D. A root hair
Answer: B. An outgrowth or bud on the parent
15. Hydra commonly reproduces asexually by:
A. Budding
B. Pollination
C. Fertilisation
D. Seed formation
Answer: A. Budding
16. Many fungi reproduce asexually by producing:
A. Seeds
B. Spores
C. Eggs
D. Pollen grains
Answer: B. Spores
17. Spore formation is advantageous because spores are generally:
A. Heavy and unable to spread
B. Capable of being dispersed and surviving suitable conditions
C. Always produced by animals
D. Produced only inside flowers
Answer: B. Capable of being dispersed and surviving suitable conditions
18. Which process involves breaking of an organism into fragments, with each fragment potentially developing into a new individual?
A. Fragmentation
B. Fertilisation
C. Pollination
D. Grafting
Answer: A. Fragmentation
19. Sexual reproduction generally involves:
A. Only one parent and no gametes
B. Fusion of male and female gametes
C. Only vegetative parts
D. Formation of spores only
Answer: B. Fusion of male and female gametes
20. The reproductive cells involved in sexual reproduction are called:
A. Tissues
B. Gametes
C. Organs
D. Spores
Answer: B. Gametes
21. Which process produces gametes with half the usual chromosome number?
A. Mitosis
B. Meiosis
C. Fertilisation
D. Budding
Answer: B. Meiosis
22. Why is meiosis important in sexual reproduction?
A. It doubles chromosome number in every generation
B. It reduces chromosome number in gametes
C. It produces identical body cells only
D. It prevents gamete formation
Answer: B. It reduces chromosome number in gametes
23. The fusion of male and female gametes produces:
A. Spore
B. Zygote
C. Pollen grain
D. Seed coat
Answer: B. Zygote
24. Which structure of a flower produces pollen grains?
A. Stigma
B. Ovary
C. Anther
D. Sepal
Answer: C. Anther
25. The male reproductive part of a flower is called:
A. Pistil
B. Stamen
C. Ovule
D. Ovary
Answer: B. Stamen
26. The female reproductive part of a flower is called:
A. Stamen
B. Pistil
C. Anther
D. Filament
Answer: B. Pistil
27. Which part of the pistil receives pollen grains?
A. Ovary
B. Style
C. Stigma
D. Ovule
Answer: C. Stigma
28. The ovules are present inside the:
A. Anther
B. Ovary
C. Stigma
D. Filament
Answer: B. Ovary
29. The transfer of pollen grains from anther to stigma is called:
A. Fertilisation
B. Pollination
C. Germination
D. Fragmentation
Answer: B. Pollination
30. Pollination between flowers of the same plant is generally called:
A. Cross-pollination
B. Self-pollination
C. Fertilisation
D. Germination
Answer: B. Self-pollination
31. Transfer of pollen from one plant to another plant of the same species is called:
A. Self-pollination
B. Cross-pollination
C. Budding
D. Vegetative propagation
Answer: B. Cross-pollination
32. Which of the following can act as an agent of pollination?
A. Wind
B. Insects
C. Water
D. All of the above
Answer: D. All of the above
33. What usually happens after pollen reaches a compatible stigma?
A. The pollen grain can germinate and form a pollen tube
B. The flower immediately dies
C. The ovary disappears
D. The petals become seeds
Answer: A. The pollen grain can germinate and form a pollen tube
34. The pollen tube helps deliver the male gamete towards the:
A. Sepal
B. Ovule
C. Petal
D. Anther
Answer: B. Ovule
35. Fertilisation in flowering plants occurs when:
A. Pollen is produced
B. Male and female gametes fuse
C. Petals open
D. Seeds are dispersed
Answer: B. Male and female gametes fuse
36. After fertilisation, the zygote develops into:
A. An embryo
B. A pollen grain
C. A sepal
D. Anther
Answer: A. An embryo
37. After fertilisation, the ovule generally develops into a:
A. Fruit
B. Seed
C. Petal
D. Pollen grain
Answer: B. Seed
38. After fertilisation, the ovary generally develops into a:
A. Seed
B. Fruit
C. Pollen grain
D. Root
Answer: B. Fruit
39. Which statement correctly describes the relationship between ovule and seed?
A. Ovule develops into seed after fertilisation
B. Seed develops into ovule
C. Ovule and seed are always identical structures
D. Ovule is produced from pollen
Answer: A. Ovule develops into seed after fertilisation
40. Which statement correctly describes the relationship between ovary and fruit?
A. Ovary develops into fruit after fertilisation
B. Fruit develops into ovary
C. Ovary develops into pollen
D. Ovary becomes a gamete
Answer: A. Ovary develops into fruit after fertilisation
41. Seed dispersal helps plants by:
A. Preventing all seeds from germinating
B. Reducing competition between young plants and the parent plant
C. Stopping reproduction
D. Destroying seeds
Answer: B. Reducing competition between young plants and the parent plant
42. Which of the following can help in seed dispersal?
A. Wind
B. Water
C. Animals
D. All of the above
Answer: D. All of the above
43. Sexual reproduction is important because it:
A. Produces no variation
B. Can introduce variations among offspring
C. Always produces exact copies of the parent
D. Involves only one parent
Answer: B. Can introduce variations among offspring
44. Variations produced during sexual reproduction can help organisms:
A. Adapt to changing environments
B. Stop reproducing
C. Lose all genetic information
D. Become identical
Answer: A. Adapt to changing environments
45. Which statement about asexual reproduction is generally correct?
A. It always requires fusion of gametes
B. It usually produces offspring similar to the parent
C. It always involves two parents
D. It cannot occur in plants
Answer: B. It usually produces offspring similar to the parent
46. Which of the following is an advantage of asexual reproduction for agriculture?
A. It can rapidly produce many plants with desirable characteristics
B. It always creates maximum genetic variation
C. It requires two different parent plants
D. It prevents multiplication of plants
Answer: A. It can rapidly produce many plants with desirable characteristics
47. A farmer wants to produce many plants identical to a plant having desirable characteristics. Which method would be most suitable?
A. Vegetative propagation
B. Cross-pollination only
C. Random seed production
D. Natural selection only
Answer: A. Vegetative propagation
48. Which sequence correctly represents sexual reproduction in flowering plants?
A. Fertilisation → Pollination → Seed formation
B. Pollination → Pollen germination → Fertilisation → Seed formation
C. Seed formation → Pollination → Fertilisation
D. Germination → Pollination → Fruit formation → Fertilisation
Answer: B. Pollination → Pollen germination → Fertilisation → Seed formation
49. Which of the following best explains why sexual reproduction produces variation?
A. Offspring receive genetic material from two parents
B. Offspring receive genetic material from no parents
C. Only one cell divides repeatedly
D. There is no genetic information involved
Answer: A. Offspring receive genetic material from two parents
50. Which statement best explains the importance of reproduction?
A. It keeps every individual alive forever
B. It ensures the continuity of species from one generation to the next
C. It prevents organisms from changing
D. It stops variations from occurring
Answer: B. It ensures the continuity of species from one generation to the next