61. Which part of the flower is typically brightly colored to attract pollinators?
A) Sepal
B) Petal
C) Stamen
D) Ovary
Answer: B) Petal
62. The female gametophyte is found in the:
A) Pollen grain
B) Ovule
C) Anther
D) Stamen
Answer: B) Ovule
63. Which plant hormone promotes fruit ripening?
A) Auxin
B) Ethylene
C) Gibberellin
D) Cytokinin
Answer: B) Ethylene
64. What is the initial product of fertilization in flowering plants?
A) Seed
B) Zygote
C) Ovule
D) Fruit
Answer: B) Zygote
65. What is the primary role of the style in a flower?
A) To produce nectar
B) To support the ovary and facilitate pollen tube growth
C) To protect the ovules
D) To attract pollinators
Answer: B) To support the ovary and facilitate pollen tube growth
66. In plants, what does the term “germination” refer to?
A) The process of fertilization
B) The development of seeds into new plants
C) The growth of pollen tubes
D) The dispersal of seeds
Answer: B) The development of seeds into new plants
67. What type of flower contains both male and female reproductive organs?
A) Imperfect flower
B) Complete flower
C) Perfect flower
D) Simple flower
Answer: C) Perfect flower
68. Which structure helps in the transfer of genetic material in fertilization?
A) Pollen tube
B) Stigma
C) Seed coat
D) Endosperm
Answer: A) Pollen tube
69. Which part of the flower is known as the ovule-producing part?
A) Anther
B) Stamen
C) Carpel
D) Petal
Answer: C) Carpel
70. Which of the following is an advantage of cross-pollination?
A) It guarantees successful fertilization
B) It reduces the risk of inbreeding
C) It is less dependent on environmental conditions
D) It produces identical offspring
Answer: B) It reduces the risk of inbreeding
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