1. Why do organisms reproduce?
a) To maintain their body design
b) To ensure species survival
c) To grow and develop
d) To obtain energy
Answer: b

2. What is the basis of variation during reproduction?
a) Accurate DNA copying
b) Inaccurate DNA copying
c) Formation of identical cells
d) Environmental factors only
Answer: b

3. Why is variation beneficial to species?
a) It promotes faster reproduction.
b) It allows survival in changing environments.
c) It ensures identical offspring.
d) It eliminates weaker individuals.
Answer: b

4. How does binary fission occur in Amoeba?
a) Cell splits into unequal halves.
b) Cell splits into two equal halves.
c) Cell grows a bud first.
d) Cell forms spores.
Answer: b

5. Which organism reproduces through budding?
a) Planaria
b) Yeast
c) Amoeba
d) Plasmodium
Answer: b

6. What is vegetative propagation?
a) Reproduction using spores
b) Growth from roots, stems, or leaves
c) Growth through fertilization
d) Formation of buds
Answer: b

7. Which structure in Bryophyllum helps in reproduction?
a) Roots
b) Stems
c) Notches along the leaf margin
d) Buds on flowers
Answer: c

8. Which process occurs in Plasmodium reproduction?
a) Binary fission
b) Multiple fission
c) Budding
d) Spore formation
Answer: b

9. What is a sporangium?
a) A cell that splits into two halves
b) A reproductive structure producing spores
c) A tissue for vegetative propagation
d) A bud developing into a new individual
Answer: b

10. Why is DNA copying essential in reproduction?
a) To promote faster reproduction
b) To create identical offspring
c) To maintain body design in offspring
d) To destroy older cells
Answer: c11. Which organism reproduces by fragmentation?

a) Hydra
b) Spirogyra
c) Yeast
d) Planaria
Answer: b

12. What is regeneration?
a) Growing new cells
b) Reproducing from body parts
c) Formation of spores
d) Binary fission in simple organisms
Answer: b

13. In Hydra, reproduction occurs by:
a) Fragmentation
b) Budding
c) Spore formation
d) Binary fission
Answer: b

14. What is the primary advantage of vegetative propagation?
a) Creates genetic variations
b) Reduces reproduction time
c) Produces genetically identical offspring
d) Requires no energy
Answer: c

15. Which organism reproduces using multiple fission?
a) Plasmodium
b) Amoeba
c) Hydra
d) Yeast
Answer: a

16. Which of the following is an asexual mode of reproduction?
a) Fertilization
b) Pollination
c) Spore formation
d) Copulation
Answer: c

17. What happens in tissue culture?
a) Reproduction by seeds
b) Growth of a plant from cells or tissues
c) Pollination by insects
d) Formation of buds
Answer: b

18. What helps Rhizopus reproduce?
a) Roots
b) Hyphae
c) Sporangia
d) Leaves
Answer: c

19. What type of reproduction occurs in organisms like banana and rose?
a) Budding
b) Fragmentation
c) Vegetative propagation
d) Spore formation
Answer: c

20. Why are asexual reproduction methods useful?
a) They create genetic diversity.
b) They are faster and require one parent.
c) They prevent variations.
d) They create stronger offspring.
Answer: b

21. What is the role of pollen grains in flowering plants?
a) They protect the ovule.
b) They transport male gametes.
c) They provide nutrition.
d) They form seeds.
Answer: b

22. What is self-pollination?
a) Pollination between flowers of different plants
b) Transfer of pollen within the same flower
c) Pollination using wind
d) Pollination by animals
Answer: b

23. What is fertilization in plants?
a) Transfer of pollen to stigma
b) Fusion of male and female gametes
c) Formation of a bud
d) Development of the ovary into a fruit
Answer: b

24. What happens to the ovary after fertilization?
a) It becomes a seed.
b) It forms a fruit.
c) It forms roots.
d) It shrivels and falls off.
Answer: b

25. What is the zygote?
a) A male gamete
b) A structure for pollination
c) A fertilized egg
d) An unfertilized egg
Answer: c

26. Which part of the flower contains ovules?
a) Stigma
b) Style
c) Ovary
d) Petals
Answer: c

27. What is cross-pollination?
a) Transfer of pollen from one flower to another
b) Fusion of male and female gametes
c) Development of the ovary into fruit
d) Pollination using self-pollen
Answer: a

28. Which structure grows into a seed after fertilization?
a) Ovule
b) Ovary
c) Stigma
d) Style
Answer: a

29. What is germination?
a) The process of pollination
b) The growth of a seed into a plant
c) The fusion of gametes
d) The formation of a fruit
Answer: b

30. Which of the following is unisexual?
a) Hibiscus
b) Mustard
c) Papaya
d) Rose
Answer: c

31. Which hormone triggers puberty in males?
a) Estrogen
b) Insulin
c) Testosterone
d) Progesterone
Answer: c

32. What is puberty?
a) Growth of a child into adulthood
b) Maturation of reproductive organs
c) Formation of hair on the body
d) Reduction in body growth
Answer: b

33. What is the male gamete in humans?
a) Ovum
b) Sperm
c) Zygote
d) Egg
Answer: b

34. What is the function of the scrotum?
a) Protects the brain
b) Maintains sperm temperature
c) Produces eggs
d) Supports fertilization
Answer: b

35. What is the role of the uterus in reproduction?
a) Produces sperms
b) Nourishes and develops the embryo
c) Produces eggs
d) Facilitates pollination
Answer: b

36. What carries the sperm to the urethra?
a) Scrotum
b) Fallopian tube
c) Vas deferens
d) Seminal vesicles
Answer: c

37. Which organ produces eggs in females?
a) Uterus
b) Ovary
c) Fallopian tube
d) Vagina
Answer: b

38. Where does fertilization occur in humans?
a) Uterus
b) Ovary
c) Vagina
d) Fallopian tube
Answer: d

39. What is menstruation?
a) Formation of eggs
b) Shedding of the uterine lining
c) Implantation of the embryo
d) Fusion of gametes
Answer: b

40. What is the placenta?
a) The organ where fertilization occurs
b) A tissue that transfers nutrients to the fetus
c) The uterus lining
d) The outer layer of the egg
Answer: b

41. What is contraception?
a) Process of fertilization
b) Preventing pregnancy
c) Growth of the embryo
d) Formation of gametes
Answer: b

42. What is the role of condoms?
a) Prevent fertilization
b) Prevent sexually transmitted diseases
c) Both a and b
d) Promote fertilization
Answer: c

43. Which contraceptive device is placed in the uterus?
a) Condoms
b) Copper-T
c) Oral pills
d) Diaphragm
Answer: b

44. What is the function of oral contraceptives?
a) Prevent ovulation
b) Prevent fertilization
c) Destroy gametes
d) Prevent embryo growth
Answer: a

45. Which method of contraception involves surgery in males?
a) Copper-T
b) Vasectomy
c) Tubectomy
d) Oral pills
Answer: b

46. What are sexually transmitted diseases caused by bacteria?
a) AIDS and warts
b) Syphilis and gonorrhea
c) HIV and syphilis
d) Gonorrhea and AIDS
Answer: b

47. What happens during implantation?
a) Fusion of sperm and egg
b) Attachment of the embryo to the uterus
c) Division of the zygote
d) Fertilization in the ovary
Answer: b

48. Which method is used for sex-selective abortion?
a) Ultrasound scanning
b) Blood tests
c) Surgery
d) IVF
Answer: a

49. How is the child nourished inside the womb?
a) Through blood circulation
b) Through the placenta
c) Through the uterine lining
d) Through direct food intake
Answer: b

50. How long is the average gestation period in humans?
a) 5 months
b) 6 months
c) 7 months
d) 9 months
Answer: d51. What is the main function of the testes?

a) To produce sperm and testosterone
b) To store and transport urine
c) To nourish the embryo
d) To produce female gametes
Answer: a

52. What are the male reproductive glands?
a) Seminal vesicles and vas deferens
b) Prostate gland and seminal vesicles
c) Ovaries and testes
d) Urethra and prostate gland
Answer: b

53. Where are sperms stored temporarily?
a) Scrotum
b) Vas deferens
c) Epididymis
d) Urethra
Answer: c

54. What is the function of the fallopian tube in females?
a) Produces eggs
b) Transports eggs to the uterus
c) Nourishes the fetus
d) Blocks fertilization
Answer: b

55. What is the primary function of the ovary?
a) To produce eggs and female hormones
b) To transport eggs to the uterus
c) To secrete sperm
d) To block fertilization
Answer: a

56. What happens if the egg is not fertilized?
a) It is implanted in the uterus.
b) It breaks down and is shed during menstruation.
c) It develops into a zygote.
d) It fuses with another egg.
Answer: b

57. How does a zygote form?
a) By division of an egg
b) By fusion of sperm and egg
c) By shedding of the uterine lining
d) By growth of gametes
Answer: b

58. Which structure supports the growth of the embryo?
a) Placenta
b) Ovary
c) Prostate gland
d) Epididymis
Answer: a

59. What is tubectomy?
a) Surgical removal of the testes
b) Blocking the fallopian tubes
c) Cutting the vas deferens
d) Removal of the uterus
Answer: b

60. Which hormone controls menstrual cycles?
a) Testosterone
b) Progesterone
c) Insulin
d) Thyroxine
Answer: b

61. How is fertilization achieved in flowering plants?
a) By self-pollination only
b) By fusion of pollen and ovule
c) By germination of seeds
d) By formation of fruits
Answer: b

62. Which part of the flower produces pollen?
a) Pistil
b) Sepals
c) Anther
d) Petals
Answer: c

63. What does the stigma do in a flower?
a) Protects the ovary
b) Produces pollen grains
c) Receives pollen grains
d) Transports gametes
Answer: c

64. How does cross-pollination occur?
a) Through self-pollen
b) By wind, water, or animals
c) By splitting the ovary
d) By vegetative propagation
Answer: b

65. What is the primary purpose of pollination?
a) Seed dispersal
b) Fertilization of ovules
c) Formation of buds
d) Germination of seeds
Answer: b

66. What is the reproductive structure in flowering plants?
a) Stem
b) Flower
c) Leaf
d) Root
Answer: b

67. How does the male gamete reach the ovary in plants?
a) By wind
b) By the growth of a pollen tube
c) By seed germination
d) By vegetative propagation
Answer: b

68. What develops into a fruit in flowering plants?
a) Ovary
b) Ovule
c) Pollen
d) Stigma
Answer: a

69. What are the signs of puberty in boys?
a) Development of breast tissue
b) Growth of facial hair and voice deepening
c) Menstruation
d) Increase in hip size
Answer: b

70. What triggers menstruation in females?
a) Fertilization of the egg
b) Breakdown of the uterine lining
c) Implantation of the zygote
d) Formation of the placenta
Answer: b

71. What is the lifespan of an unfertilized egg in humans?
a) 2–3 hours
b) 24–48 hours
c) 72 hours
d) 7 days
Answer: b

72. What is the role of the placenta?
a) Fertilizes the egg
b) Removes waste from the fetus
c) Produces gametes
d) Prevents sperm entry
Answer: b

73. Which contraceptive method uses hormonal pills?
a) Condoms
b) Oral contraceptives
c) Copper-T
d) Vasectomy
Answer: b

74. What prevents sexually transmitted diseases during intercourse?
a) Copper-T
b) Oral contraceptives
c) Condoms
d) Loop
Answer: c

75. What is a zygote?
a) A mature egg
b) A fertilized ovule
c) A fertilized egg
d) A developing embryo
Answer: c

76. How is gestation defined?
a) The process of menstruation
b) The development of the embryo
c) The period from fertilization to birth
d) The implantation of the zygote
Answer: c

77. What does the term “foetus” refer to?
a) A fertilized egg
b) An embryo with developed organs
c) A newly born child
d) A gamete
Answer: b

78. What is the primary function of seminal vesicles?
a) Protect the testes
b) Nourish the sperms
c) Block the urethra
d) Aid in fertilization
Answer: b

79. What does the prostate gland secrete?
a) Hormones
b) Fluid to nourish and transport sperm
c) Testosterone
d) Eggs
Answer: b

80. What defines sexual reproduction?
a) Reproduction with one parent
b) Involves fusion of male and female gametes
c) Produces identical offspring
d) Does not involve gametes
Answer: b

81. What does the menstrual cycle prepare the body for?
a) Gamete production
b) Fertilization and pregnancy
c) Breakdown of the uterine wall
d) Hormonal changes
Answer: b

82. Why is variation important in sexual reproduction?
a) Ensures identical offspring
b) Promotes species survival
c) Eliminates weaker organisms
d) Speeds up reproduction
Answer: b

83. What does a condom do?
a) Blocks ovulation
b) Prevents sperm from reaching the egg
c) Nourishes the zygote
d) Facilitates fertilization
Answer: b

84. How do oral contraceptives work?
a) Prevent ovulation
b) Kill sperm
c) Block the uterus
d) Prevent menstruation
Answer: a

85. Which process ensures genetic diversity in offspring?
a) Asexual reproduction
b) Binary fission
c) Sexual reproduction
d) Vegetative propagation
Answer: c

86. Which organ produces male gametes?
a) Urethra
b) Penis
c) Testes
d) Scrotum
Answer: c

87. What is sperm motility supported by?
a) Long tail
b) Thick head
c) Hormones
d) Urethra
Answer: a

88. What carries the zygote to the uterus?
a) Fallopian tube
b) Ovary
c) Vagina
d) Cervix
Answer: a

89. How does copper-T prevent pregnancy?
a) Blocks sperm entry
b) Releases hormones to stop fertilization
c) Prevents implantation of the zygote
d) Stops ovulation
Answer: c

90. Which hormone is produced by ovaries?
a) Testosterone
b) Estrogen
c) Progesterone
d) Both b and c
Answer: d

91. What is the significance of puberty?
a) Development of body proportions
b) Sexual maturity and reproductive capability
c) Slowing down of growth
d) Hormonal imbalances
Answer: b

92. How is menstruation controlled?
a) By insulin levels
b) By thyroid hormones
c) By reproductive hormones
d) By the uterus
Answer: c

93. What triggers childbirth?
a) Growth of the embryo
b) Rhythmic contractions of the uterus
c) Stopping of menstruation
d) Fertilization of the egg
Answer: b

94. Which hormone regulates male puberty?
a) Estrogen
b) Testosterone
c) Progesterone
d) Insulin
Answer: b

95. How does the uterus prepare for pregnancy?
a) Thickens its lining
b) Releases gametes
c) Forms the placenta
d) Blocks fertilization
Answer: a

96. What happens during sexual reproduction?
a) Identical copies are made.
b) Male and female gametes fuse.
c) Zygotes divide into spores.
d) Vegetative parts grow.
Answer: b

97. What does the embryo develop into?
a) Foetus
b) Placenta
c) Zygote
d) Gamete
Answer: a

98. Which structure stores sperm?
a) Scrotum
b) Epididymis
c) Urethra
d) Testes
Answer: b

99. What does the amniotic fluid do?
a) Nourishes the fetus
b) Protects the fetus from shocks
c) Transfers oxygen to the embryo
d) Produces hormones
Answer: b

100. Why is sexual reproduction advantageous?
a) Ensures identical offspring
b) Creates variations for adaptability
c) Prevents mutations
d) Requires no energy
Answer: b