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Q.
A genetic mechanism and prevents self-pollination is
NTA AbhyasNTA Abhyas 2020Sexual Reproduction in Flowering Plants
Solution:
The device to prevent inbreeding is self-incompatibility. This is a genetic mechanism and prevents self-pollen (from the same flower or other flowers of the same plant) from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil.