Sample Questions — Pre fertilisation
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MCQ
Why is only one megaspore functional during embryo sac formation in most flowering plants?
✅ Correct Answer: D
Of the four meiotic products, only one develops into the embryo sac, ensuring energy is not wasted on redundant structures.
MCQ
The process of megaspore formation from the megaspore mother cell is called:
✅ Correct Answer: D
Megasporogenesis refers to the formation of megaspores from the megaspore mother cell.
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MCQ
The first division of the functional megaspore leads to the formation of:
✅ Correct Answer: C
The functional megaspore divides mitotically to give rise to the 2-nucleate stage.
MCQ
Which structure is not part of the gynoecium?
✅ Correct Answer: D
Anther is part of the androecium (male reproductive organ).
MCQ
Assertion (A): Pollen grains with sporopollenin in exine are well-preserved as fossils.
Reason (R): Sporopollenin is chemically inert and promotes decomposition
✅ Correct Answer: C
Sporopollenin prevents degradation, making pollen grains fossilizable.
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