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Question

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

Prabhat Rajore · Accepted Answer

Self-incompatibility is the condition where the pollen fails to pollinate the stigma of the same flower or other flower of the same plants.

It is a genetic mechanism that prevents the self pollination by inhibiting the growth of pollen tube in the pistil. Therefore self pollination does not lead to fertilization and hence the seed formation in the self incompatible species.

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Sexual Reproduction In Flowering Plants

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

Some More Questions From Sexual Reproduction in flowering Plants Chapter

The fertilization occurs in the :

The female gametophyte of a typical dicot at the time of fertilization is:

Development of embryo from any cell of nucellus is called :

Parthenocarpic fruit is :

The entry of pollen tube into embryo sac through the integuments is termed as :

512 microspores will be formed following meiosis of how many microspore mother cells.

Pollination by water occurs in :

In ................... flowers, the thalamus grows upwards completely enclosing the ovary, and the stamens, petals and sepals are borne above the ovary.

In Calotropis, all the microspores of anther lobe remain united to form

Albuminous seeds store reserve food materials in ....................

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