Question

How can plants prevent self pollination?

• A. Stamen and pistil mature at different times.
• B. Plants should develop bisexual flowers.
• C. Pistil should have increased receptivity for pollens from same plant.
• D. All of the above.

Answer 1

The correct option is A Stamen and pistil mature at different times.

• There are several methods to prevent self-pollination in plants. Bisexual flowers show self-pollination.
• Chances of self-pollination increases when pistil has increased receptivity for pollen from the same plant. Self-pollination occurs in flowers where the stamen and carpel mature at the same time.
• Hence, to prevent self-pollination, stamen and pistil must mature at different times.

Thus, the correct answer is option A.