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Question

What is self-incompatibility? Why does self-pollination not lead to seed formation in self-incompatible species?


Solution

Self incompatibility promotes cross pollination in bisexual flowers.

Self-incompatiblity is a genetic mechanism to prevent self pollen from fertilizing the ovules by inhibiting pollen germination or pollen tube growth in the pistil.

In these cases, self -pollination does not lead to seed formation because fertilization is inhibited.

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