NCERT Book Class 10th SCIENCE MCQ
Chapter 7 : How do Organisms Reproduce?
Multiple-Choice Questions (MCQs) with Answers
1. Which of the following is an example of asexual reproduction?
a) Human
b) Hydra
c) Rose
d) Dog
Answer: b) Hydra
2. Binary fission occurs in:
a) Amoeba
b) Hydra
c) Plasmodium
d) Yeast
Answer: a) Amoeba
3. Multiple fission is found in:
a) Amoeba
b) Plasmodium
c) Yeast
d) Spirogyra
Answer: b) Plasmodium
4. Asexual reproduction in Hydra occurs by:
a) Budding
b) Binary fission
c) Sporulation
d) Fragmentation
Answer: a) Budding
5. Which plant reproduces by vegetative propagation?
a) Rose
b) Wheat
c) Rice
d) Corn
Answer: a) Rose
6. Sexual reproduction involves:
a) Two parents
b) One parent
c) No parents
d) None of the above
Answer: a) Two parents
7. The male gamete is called:
a) Egg
b) Sperm
c) Zygote
d) Spore
Answer: b) Sperm
8. The female gamete is called:
a) Egg
b) Sperm
c) Zygote
d) Spore
Answer: a) Egg
9. The structure formed after fertilization is:
a) Gamete
b) Zygote
c) Embryo
d) Seed
Answer: b) Zygote
10. In humans, fertilization occurs in:
a) Ovary
b) Uterus
c) Fallopian tube
d) Vagina
Answer: c) Fallopian tube
11. The male part of a flower is called:
a) Pistil
b) Stamen
c) Style
d) Stigma
Answer: b) Stamen
12. The female part of a flower is called:
a) Pistil
b) Stamen
c) Receptacle
d) Corolla
Answer: a) Pistil
13. Pollen grains are produced in:
a) Stigma
b) Anther
c) Ovary
d) Style
Answer: b) Anther
14. After fertilization, the ovary develops into:
a) Seed
b) Fruit
c) Embryo
d) Zygote
Answer: b) Fruit
15. The ovule develops into:
a) Fruit
b) Seed
c) Embryo
d) Zygote
Answer: b) Seed
16. The male reproductive organ in humans is:
a) Ovary
b) Seminal vesicle
c) Testis
d) Uterus
Answer: c) Testis
17. The female reproductive organ in humans is:
a) Testis
b) Ovary
c) Seminal vesicle
d) Prostate
Answer: b) Ovary
18. In humans, sperm is produced in:
a) Testes
b) Ovaries
c) Uterus
d) Fallopian tubes
Answer: a) Testes
19. In humans, eggs are produced in:
a) Testes
b) Ovaries
c) Uterus
d) Fallopian tubes
Answer: b) Ovaries
20. The duration of the menstrual cycle is:
a) 15 days
b) 28 days
c) 30 days
d) 45 days
Answer: b) 28 days
21. AIDS is caused by:
a) HIV virus
b) Bacteria
c) Protozoa
d) Fungus
Answer: a) HIV virus
22. An example of a contraceptive is:
a) Condom
b) Penicillin
c) Paracetamol
d) Aspirin
Answer: a) Condom
23. Which of the following is a sexually transmitted disease?
a) Typhoid
b) Syphilis
c) TB
d) Malaria
Answer: b) Syphilis
24. In female sterilization, which part is cut?
a) Fallopian tube
b) Uterus
c) Ovary
d) Vagina
Answer: a) Fallopian tube
25. In male sterilization, which part is cut?
a) Testis
b) Vas deferens
c) Prostate
d) Urethra
Answer: b) Vas deferens
26. Planaria reproduces by:
a) Budding
b) Fragmentation
c) Binary fission
d) Sporulation
Answer: b) Fragmentation
27. Bryophyllum reproduces by:
a) Leaves
b) Roots
c) Stems
d) Flowers
Answer: a) Leaves
28. Which of the following is not a type of asexual reproduction?
a) Budding
b) Fragmentation
c) Fertilization
d) Sporulation
Answer: c) Fertilization
29. Yeast reproduces by:
a) Budding
b) Binary fission
c) Sporulation
d) Fragmentation
Answer: a) Budding
30. Spirogyra reproduces by:
a) Fragmentation
b) Budding
c) Binary fission
d) Sporulation
Answer: a) Fragmentation
31. (CBSE 2020) Which plant hormone is responsible for flowering?
a) Auxin
b) Gibberellin
c) Cytokinin
d) Abscisic acid
Answer: b) Gibberellin
32. (CBSE 2019) In humans, embryo develops in:
a) Ovary
b) Uterus
c) Fallopian tube
d) Vagina
Answer: b) Uterus
33. (CBSE 2018) Which of the following is not a sexually transmitted disease?
a) Syphilis
b) Gonorrhea
c) AIDS
d) Typhoid
Answer: d) Typhoid
34. (CBSE 2017) Pollination in plants is:
a) Transfer of pollen to stigma
b) Fertilization process
c) Seed germination
d) Fruit formation
Answer: a) Transfer of pollen to stigma
35. (CBSE 2016) The main advantage of asexual reproduction is:
a) Genetic diversity
b) Rapid population growth
c) Higher chance of mutation
d) Need for sexual parents
Answer: b) Rapid population growth
36. (MP Board 2020) Which is not an example of vegetative propagation?
a) Rose cutting
b) Potato tuber
c) Wheat seed
d) Sugarcane piece
Answer: c) Wheat seed
37. (UP Board 2019) Duration of human pregnancy is:
a) 6 months
b) 9 months
c) 12 months
d) 3 months
Answer: b) 9 months
38. (Bihar Board 2018) Which plant does not reproduce by seeds?
a) Mango
b) Banana
c) Wheat
d) Rice
Answer: b) Banana
39. (MP Board 2017) Which animal does not reproduce asexually?
a) Hydra
b) Amoeba
c) Human
d) Planaria
Answer: c) Human
40. (UP Board 2016) Which part of flower develops into fruit?
a) Ovary
b) Stigma
c) Stamen
d) Petal
Answer: a) Ovary
41. Which plant is propagated by cutting?
a) Rose
b) Wheat
c) Paddy
d) Corn
Answer: a) Rose
42. After fertilization, zygote divides to form:
a) Seed
b) Embryo
c) Fruit
d) Ovule
Answer: b) Embryo
43. Which plant hormone induces cell division?
a) Auxin
b) Gibberellin
c) Cytokinin
d) Abscisic acid
Answer: c) Cytokinin
44. Which hormone is tested for pregnancy detection in humans?
a) Insulin
b) Estrogen
c) hCG
d) Testosterone
Answer: c) hCG
45. Which animal is hermaphrodite?
a) Human
b) Dog
c) Earthworm
d) Cat
Answer: c) Earthworm
46. Which statement is correct?
a) Asexual reproduction has more genetic diversity
b) Sexual reproduction involves one parent
c) Sexual reproduction has more genetic diversity
d) Asexual reproduction involves gametes
Answer: c) Sexual reproduction has more genetic diversity
47. Self-pollination occurs when:
a) Pollen moves from one flower to another
b) Pollen moves from one plant to another
c) Pollen reaches stigma of same flower
d) Pollen is transferred by insects
Answer: c) Pollen reaches stigma of same flower
48. Which pair is incorrectly matched?
a) Amoeba – Binary fission
b) Hydra – Budding
c) Yeast – Sporulation
d) Planaria – Fragmentation
Answer: c) Yeast – Sporulation (Correct is Budding)
49. Sex determination in humans is by:
a) Egg
b) Sperm
c) Uterus
d) Fallopian tube
Answer: b) Sperm
50. Which contraceptive doesn’t protect against STDs?
a) Condom
b) Pill
c) Sterilization
d) Copper-T
Answer: b) Pill
51. The primary purpose of reproduction is:
a) Energy production
b) Continuation of species
c) Body repair
d) Stopping growth
Answer: b) Continuation of species
52. Which organism has highest regeneration capacity?
a) Human
b) Starfish
c) Dog
d) Cat
Answer: b) Starfish
53. Main advantage of asexual reproduction is:
a) Genetic diversity
b) Rapid population growth
c) Higher mutation chance
d) Gamete formation
Answer: b) Rapid population growth
54. Rose plants are commonly propagated by:
a) Seeds
b) Cuttings
c) Leaves
d) Roots
Answer: b) Cuttings
55. Potato undergoes vegetative propagation by:
a) Buds
b) Stems
c) Tubers
d) Leaves
Answer: c) Tubers
56. Which plant propagates vegetatively by leaves?
a) Potato
b) Bryophyllum
c) Sugarcane
d) Rose
Answer: b) Bryophyllum
57. Human embryo gets nutrition from:
a) Ovary
b) Uterine wall
c) Placenta
d) Fallopian tube
Answer: c) Placenta
58. Fertilized egg implants in uterus after:
a) 1-2 days
b) 5-7 days
c) 10-12 days
d) 15-20 days
Answer: b) 5-7 days
59. Human embryo’s heart starts beating at:
a) 1 week
b) 3 weeks
c) 5 weeks
d) 8 weeks
Answer: c) 5 weeks
60. Which contraceptive is a mechanical method?
a) Pill
b) Condom
c) Injection
d) IUD
Answer: b) Condom
61. In female sterilization, which tube is cut?
a) Fallopian tube
b) Uterus
c) Ovary
d) Vagina
Answer: a) Fallopian tube
62. Which STD is caused by bacteria?
a) AIDS
b) Syphilis
c) Hepatitis-B
d) Herpes
Answer: b) Syphili
63. Which organism can regenerate lost body parts?
a) Human
b) Lizard
c) Dog
d) Cat
Answer: b) Lizard
64. Spirogyra reproduces asexually by:
a) Budding
b) Fragmentation
c) Spores
d) Gametes
Answer: b) Fragmentation
65. Which organism is hermaphrodite?
a) Human
b) Earthworm
c) Dog
d) Cat
Answer: b) Earthworm
66. The colorful attractive part of flower is:
a) Sepal
b) Petal
c) Stamen
d) Pistil
Answer: b) Petal
67. The male part of flower is:
a) Style
b) Stigma
c) Stamen
d) Ovary
Answer: c) Stamen
68. Transfer of pollen grains is called:
a) Fertilization
b) Pollination
c) Zygote formation
d) Dispersal
Answer: b) Pollination
69. Which plant is grown by vegetative propagation?
a) Wheat
b) Rice
c) Sugarcane
d) Corn
Answer: c) Sugarcane
70. Duration of human pregnancy is:
a) 36 weeks
b) 38 weeks
c) 40 weeks
d) 42 weeks
Answer: c) 40 weeks
71. Which is not a type of asexual reproduction?
a) Fission
b) Budding
c) Gamete fusion
d) Spore formation
Answer: c) Gamete fusion
72. If a plant has only stamens, it is called:
a) Bisexual
b) Staminate
c) Pistillate
d) Neuter
Answer: b) Staminate
73. Which statement is correct?
a) All plants reproduce by seeds
b) All animals reproduce sexually
c) Some organisms can reproduce both sexually and asexually
d) Asexual reproduction always needs two parents
Answer: c) Some organisms can reproduce both sexually and asexually
74. Sex determination in humans is by:
a) Always X chromosome
b) Always Y chromosome
c) Chromosome brought by sperm
d) Chromosome brought by egg
Answer: c) Chromosome brought by sperm
75. Which pair is incorrectly matched?
a) Amoeba – Binary fission
b) Yeast – Budding
c) Hydra – Fragmentation
d) Plasmodium – Multiple fission
Answer: c) Hydra – Fragmentation (Correct is Budding)
These questions cover the entire chapter comprehensively, including previous years’ questions from various boards. Let me know if you need any clarification or additional questions.