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

Self-pollination means :

Write a short note on self-incompatibility.

Continuous self - pollination of a species develops

Assertion : Self-incompatibility is a genetic mechanism which prevents self-pollination and thereby fertilisation by inhibiting either pollen germination or pollen tube growth in the pistil. Reason : In gametophytic self-incompatibility, the incompatibility reaction is determined by the genotype of the sporophytic tissue of the plant from which the pollen is derived.

Differentiate between: Self pollination and cross pollination

In self pollination pollen is transferred to stigma of the ………flower.

Write notes with 2 to 3 important points: Self- incompatibility

Continued self pollination results in………………