Question

Differentiate between self-pollination and cross-pollination.

Answer 1

1. Transfer of pollen grains from anther to the stigma belonging to the same flower is called self-pollination.
2. Pollen transfer between the anther and stigma of two different flowers in the same plant or different plants is called cross-pollination.

Self-pollination	Cross-pollination
1. The pollen transfer occurs in the same flower of the same plant.	1. Pollen transfer occurs between the different flowers of the same plant or different plants belonging to the same species.
2. Self-pollination does not require any pollinating agent.	2. Cross-pollination needs pollinating agents like wind, water, animals or insects to carry the pollen.
3. Examples: peanuts, wheat, poppy, etc.	3. Examples: apples, grasses, etc.