Question

Explain the difference between self-pollination and cross-pollination.

Answer 1

	Self-Pollination	Cross-Pollination
1.	Transfer of pollen grains from the anther to the stigma of the same flower.	Transfer of pollen grains from the anther to the stigma of another flower.
2.	Occurs in bisexual flowers having an anther and stigma maturing at the same time.	Occurs in bisexual flowers having an anther and stigma maturing at different times.
3.	External medium is not required.	An external medium is required.
4.	For examples, wheat, peas, etc.	For examples, lady finger, tomato, brinjal, etc.
5.	There is less chance of pollen grains getting destroyed.	There is a greater chance of pollen grains getting destroyed.
6.	The seeds produced by this method are not very healthy.	The seeds produced by this method would be healthier.