What is self-incompatibility? Why does s | Class 12 Biology Chapter Sexual Reproduction in Flowering Plants, Sexual Reproduction in Flowering Plants NCERT Solutions

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

Answer:

Self-incompatibility is a genetic mechanism in angiosperms that prevents self-pollination. It develops genetic incompatibility between individuals of the same species or between individuals of different species.

The plants which exhibit this phenomenon have the ability to prevent germination of pollen grains and thus, prevent the growth of the pollen tube on the stigma of the flower. This prevents the fusion of the gametes along with the development of the embryo. As a result, no seed formation takes place.

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Comments

Shoaib
2019-07-23 14:19:48

Good

Shoaib
2019-07-23 14:19:25

Good thnks

Lavanya
2019-05-26 11:48:12

Very easy to understand all the things

Saiful islam
2019-05-07 17:59:31

Thank you

Mira moinuddin
2018-12-28 04:26:11

Thanks

Saad
2018-08-19 15:13:13

It is very good

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Welcome to the NCERT Solutions for Class 12 Biology - Chapter . This page offers a step-by-step solution to the specific question from Excercise 1 , Question 9: What is self-incompatibility? Why does self-pollination not lead to seed formation in self-incompati....

What is self-incompatibility? Why does s | Class 12 Biology Chapter Sexual Reproduction in Flowering Plants, Sexual Reproduction in Flowering Plants NCERT Solutions

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