what is different B/W self pollination and cross pollination.

Question

Answer

self pollination, the pollination takes place within the single flower.pollengrains from the pollen tube moves to the stigma of the same flower.it requires no agents like wind, water etc.there is less variation. cross pollination,the pollen grains moves from one flower to another flower.it requires agents like air, water etc.pollination takes place in two different flowers.there is much more variation.

Answer

In self polination polen grain from the same plant,'s anther transfer to stigman of same plant but in cross polination pollen grain transfer from anther tl stigman of different plant of same kind.

Answer

Self Pollination vs. Cross Pollination
Self Pollination:
- Self-pollination occurs when the pollen from the anther of a flower is transferred to the stigma of the same flower or another flower on the same plant.
- It leads to the fusion of male and female gametes within the same plant, resulting in genetic uniformity.
- Self-pollination is common in plants that have flowers with both male and female reproductive organs.
- This process does not require external agents like wind, insects, or animals for pollination to occur.
- It ensures reproduction in plants that may not have access to other plants for cross-pollination.
Cross Pollination:
- Cross-pollination involves the transfer of pollen from the anther of a flower to the stigma of a different flower, usually on a separate plant.
- It promotes genetic diversity as it involves the mixing of genetic material from different plants.
- Cross-pollination often requires external agents such as wind, insects, birds, or animals to transfer pollen between flowers.
- This method of pollination helps in the exchange of genetic material, leading to the formation of new hybrids with varied traits.
- It increases the chances of survival and adaptation for the plant species in changing environments.
In conclusion, the key difference between self-pollination and cross-pollination lies in the source of pollen and the genetic diversity it brings. While self-pollination ensures reproduction within the same plant, cross-pollination promotes genetic variation through the exchange of pollen between different plants.

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