Question:
All are events of pollen-pistil interaction EXCEPT
All are events of pollen-pistil interaction EXCEPT
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Remember:
Pollen-pistil interaction starts after pollination, not inside anther
Updated On: May 8, 2026
- absorption of water and nutrients from the stigmatic surface.
- first division of pollen grain.
- deposition of pollen grain on stigma.
- germination of pollen grains to produce pollen tube.
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The Correct Option is B
Solution and Explanation
Concept: Pollen-pistil interaction includes all events from pollen landing on stigma to pollen tube growth and fertilization.
• Deposition of pollen on stigma
• Recognition (compatibility/incompatibility)
• Absorption of water and nutrients
• Germination of pollen to form pollen tube
Step 1: Understand pollen-pistil interaction.
It begins after pollination (pollen reaches stigma).
Step 2: Analyze each option.
• (A) Absorption of nutrients: Part of interaction
• (B) First division of pollen grain: Occurs before pollination (inside anther), not part of interaction
• (C) Deposition on stigma: First step of interaction
• (D) Germination: Key event of interaction
Step 3: Conclusion.
Thus, first division of pollen grain is not part of pollen-pistil interaction. Final Answer: Option (B)
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