Question

what are the disadvantages of cross pollination?
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Answer 1

Answer:

It is not always certain as a pollinating agent is always required, and it may or may not be available at the suitable time. Pollen grains have to be produced in abundance to ensure chances of pollination. This results in lot of wastage of pollen

Explanation:

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Answer 2

Answer:

1.Pollination may fail due to distance barrier.

2.Flowers have to totally depend on the external agencies for pollination.

3.More wastage of pollen.

4.It may introduce some undesirable characters.