Question

define cross pollination. describe its significant.
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Answer 1

Cross Pollination or Xenogamy is the type of pollination in which pollen grains are transferred from anther to the stigma of a different plant.

Significance of pollination:
Pollination is a pre-requisite for fertilization in flowering plants.
For fertilization and zygote formation to take place,pollination is an important process as it brings the two types of gametes closer to fertilization.
Pollination helps in the production of seeds and fruits,which ensure continuity of the plant species. Also these seeds and fruits are a source of nutrition to several animals,including humans.
Cross pollination produces offsprings with combination of characters from two types of varieties or races. Seeds become more viable and more tolerant and adaptability of new plants increases.
Pollination helps in gene recombination.
In cross pollination, as combination of new character occurs,so,new varieties may be originated.
Premature abscission of ovary is prevented.




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Answer 2

Pollination is the act of transferring pollen grains from the male anther of a flower to the female stigma. Pollination is a very important part of the life cycle of plants. Insects, birds, bats and the wind take pollen between flowering plants, which means the plants can make seeds and reproduce.

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