Answer: Do not open and ensure assured self-pollination.
- A Cannot set seed at all
- B Open very widely to attract many flying insects
- C Do not open and ensure assured self-pollination
- D Produce only male gametes
Correct answer: C. Do not open and ensure assured self-pollination
Explanation: Cleistogamous flowers never open, so anthers and stigma lie close together and autogamy (self-pollination) is assured even in the absence of pollinators.
Concept context
Flower structure, pollination, double fertilization, and seed/fruit development - the highest-scoring Class 12 biology chapter in NEET.
Read the full Sexual Reproduction in Flowering Plants notes →