Biology · HSEXUAL REPRODUCTION IN FLOWERING PLANTS
हिन्दीSelf-incompatibility in flowering plants is an outbreeding mechanism that:
Correct answer · Option 2
Is a genetic mechanism that prevents self-pollen from fertilising ovules by inhibiting pollen germination or pollen tube growth in the pistil
Explanation
Self-incompatibility is a genetic mechanism that prevents self-pollen (from the same flower or other flowers of the same plant) from fertilising ovules by inhibiting pollen germination or pollen tube growth in the pistil.