Reproduction – How Life Continues

 MCQs

1. Reproduction is important because it:

A. Increases body size
B. Produces food
C. Ensures continuity of life
D. Stops ageing

Answer: C


2. Asexual reproduction involves:

A. Two parents
B. Formation of gametes
C. One parent only
D. Fertilisation only

Answer: C


3. Vegetative propagation occurs through:

A. Flowers only
B. Vegetative parts of plants
C. Seeds only
D. Fruits only

Answer: B


4. Bryophyllum reproduces through:

A. Stem
B. Root
C. Leaf
D. Flower

Answer: C


5. Potato reproduces vegetatively through:

A. Flower
B. Fruit
C. Underground stem
D. Leaf

Answer: C


6. Grafting is commonly used in:

A. Animal breeding
B. Crop improvement
C. Water purification
D. Respiration studies

Answer: B


7. Tissue culture helps in:

A. Producing diseased plants
B. Rapid multiplication of plants
C. Reducing crop growth
D. Stopping reproduction

Answer: B


8. Budding occurs in:

A. Hydra
B. Frog
C. Fish
D. Cockroach

Answer: A


9. Yeast reproduces by:

A. Fragmentation
B. Budding
C. Binary fission
D. Spore fusion

Answer: B


10. Fungi commonly reproduce through:

A. Seeds
B. Buds
C. Spores
D. Eggs

Answer: C


11. Spores are:

A. Heavy structures
B. Usually single-celled reproductive units
C. Male gametes only
D. Non-living particles

Answer: B


12. Mitosis produces:

A. Genetically different cells
B. Haploid cells
C. Identical daughter cells
D. Gametes only

Answer: C


13. Offspring produced asexually are called:

A. Hybrids
B. Clones
C. Mutants
D. Embryos

Answer: B


14. Sexual reproduction involves:

A. One parent only
B. No gametes
C. Two parents
D. Spores only

Answer: C


15. Meiosis reduces chromosome number to:

A. Double
B. Half
C. Triple
D. Zero

Answer: B


16. Gametes are:

A. Body cells
B. Reproductive cells
C. Blood cells
D. Nerve cells

Answer: B


17. Male gamete in animals is called:

A. Ovule
B. Egg
C. Sperm
D. Zygote

Answer: C


18. Female gamete in animals is:

A. Pollen grain
B. Egg
C. Spore
D. Bud

Answer: B


19. Humans have total chromosomes:

A. 23
B. 46
C. 44
D. 92

Answer: B


20. Human gametes contain:

A. 46 chromosomes
B. 92 chromosomes
C. 23 chromosomes
D. 12 chromosomes

Answer: C


21. The reproductive organ of flowering plants is:

A. Root
B. Stem
C. Flower
D. Leaf

Answer: C


22. The male reproductive part of flower is:

A. Pistil
B. Ovary
C. Stamen
D. Petal

Answer: C


23. The female reproductive part of flower is:

A. Sepal
B. Pistil
C. Stamen
D. Anther

Answer: B


24. Pollen grains are produced in:

A. Ovary
B. Stigma
C. Anther
D. Style

Answer: C


25. Ovules are present inside:

A. Stigma
B. Style
C. Ovary
D. Petal

Answer: C


26. Transfer of pollen from anther to stigma is:

A. Fertilisation
B. Pollination
C. Germination
D. Budding

Answer: B


27. Pollination within the same flower is:

A. Cross-pollination
B. Self-pollination
C. Fertilisation
D. Budding

Answer: B


28. Cross-pollination occurs between:

A. Same ovule
B. Different flowers of same species
C. Same pollen grains
D. Same gametes

Answer: B


29. Fusion of male and female gametes is:

A. Pollination
B. Germination
C. Fertilisation
D. Budding

Answer: C


30. Fertilised egg is called:

A. Embryo
B. Zygote
C. Ovule
D. Foetus

Answer: B


Assertion–Reason MCQs

31.

Assertion (A): Asexual reproduction produces genetically identical offspring.
Reason (R): Asexual reproduction involves mitosis.

A. Both A and R are true, and R explains A
B. Both A and R are true, but R does not explain A
C. A is true but R is false
D. A is false but R is true

Answer: A


32.

Assertion (A): Cross-pollination creates more variation.
Reason (R): Gametes come from different plants.

A. Both A and R are true, and R explains A
B. Both A and R are true, but R does not explain A
C. A is true but R is false
D. A is false but R is true

Answer: A


33.

Assertion (A): Meiosis is important in sexual reproduction.
Reason (R): It reduces chromosome number by half.

A. Both A and R are true, and R explains A
B. Both A and R are true, but R does not explain A
C. A is true but R is false
D. A is false but R is true

Answer: A


34.

Assertion (A): Pollination is necessary for fruit formation.
Reason (R): Fruits develop from ovary after fertilisation.

A. Both A and R are true, and R explains A
B. Both A and R are true, but R does not explain A
C. A is true but R is false
D. A is false but R is true

Answer: A


Case-Based MCQs

Case Study 1

A gardener propagated rose plants using stem grafting.

35. Grafting is a type of:

A. Sexual reproduction
B. Asexual reproduction
C. Binary fission
D. Fertilisation

Answer: B


36. Grafting helps farmers to:

A. Reduce crop yield
B. Produce desirable varieties quickly
C. Prevent pollination
D. Stop plant growth

Answer: B


37. Plants produced by grafting are usually:

A. Genetically different
B. Identical to parent traits
C. Sterile only
D. Seedless always

Answer: B


Case Study 2

A flower receives pollen grains on its stigma from another flower of the same species.

38. This process is:

A. Self-pollination
B. Budding
C. Cross-pollination
D. Fragmentation

Answer: C


39. After fertilisation, ovules develop into:

A. Petals
B. Stamens
C. Seeds
D. Sepals

Answer: C


Competency-Based MCQs

40. Which method is MOST suitable for producing many identical banana plants quickly?

A. Seed formation
B. Tissue culture
C. Pollination
D. Fertilisation

Answer: B


41. Which pollination method usually creates greater variation?

A. Self-pollination
B. Budding
C. Cross-pollination
D. Spore formation

Answer: C


42. Which structure attracts insects for pollination?

A. Sepals
B. Petals
C. Ovules
D. Roots

Answer: B


43. Wind-pollinated flowers generally produce:

A. Very few pollen grains
B. Large sticky pollen only
C. Large number of light pollen grains
D. Bright coloured petals only

Answer: C


44. The embryo develops from:

A. Ovary
B. Zygote
C. Petal
D. Anther

Answer: B


45. Which reproductive method produces maximum genetic variation?

A. Budding
B. Vegetative propagation
C. Sexual reproduction
D. Spore formation

Answer: C


46. In humans, fertilisation occurs in:

A. Uterus
B. Ovary
C. Oviduct
D. Vagina

Answer: C


47. The uterus mainly functions to:

A. Produce sperm
B. Produce pollen
C. Support development of foetus
D. Store urine

Answer: C


48. Menstruation occurs when:

A. Fertilisation occurs
B. Uterine lining sheds
C. Ovary disappears
D. Embryo develops

Answer: B


49. Which contraceptive method also helps prevent STIs?

A. Copper-T
B. Oral pills
C. Condoms
D. Surgery

Answer: C


50. Which statement BEST explains the importance of meiosis?

A. It increases chromosome number
B. It produces identical body cells
C. It maintains chromosome number across generations
D. It stops fertilisation

Answer: C

 


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