Define the term pollination. Differentiate between self pollination and cross pollination. What is the significance of pollination?

 

Answer:

The transfer of pollen grains from the anther of a stamen to the stigma of a carpel is called pollination.

Self Pollination

Cross Pollination

When the pollen grains from the anther of a flower is transferred to the stigma of the same flower or another flower on the same plant, it is called self pollination.

When the pollen grains from the anther of a flower on a plant is transferred to the stigma of a flower on a similar plant, it is called cross pollination.

It does not require any external agents.

It involves external agents like wind, water and insects.

Does not lead to variations.

Leads to variations.

SELF POLLINATION - Teachoo.png

CROSS POLLINATION - Teachoo.png

Pollination is significant as it helps in fertilisation by transferring the male gamete closer to the female gamete.

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Self Pollination Cross Pollination

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