Question

Describe advantages and disadvantages of cross pollination to the plant?

Answer 1

Answer:

ANSWER

Cross Pollination: The transfer of pollen grains from the anther of the flower of one plant to the stigma of the flower of another plant of the same species is known as cross-pollination. As the pollination occurs between flowers of two different plants, genetics recombination is found in this allogamy.

Advantages:

(1) Cross-pollination brings about genetic recombination resulting into the origin of new varieties.

(2) The offspring produced through cross-pollination are healthy and stronger due to hybrid vigour.

(3) Numerous crop plants (such as sunflower, mustard, clover etc.) give higher yields if only cross-pollination is allowed to occur in them.

(4) Variations are produced due to cross-pollination resulting into the origin of disease resistant plants.

Disadvantages:

(1) Cross-pollination depends on the agents, hence, uncertainty is always there.

(2) Cross-pollination is not beneficial from economic point of view. The plants waste a lot of energy on various contrivances required to ensure cross-pollination and there is huge waste of pollen grains in this process.

Answer 2

Answer:

disadvantage of cross pollination..

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

advantages....

1. there is possibility to get new desirable characters.
2. it helps in evolution.
3. yield of crop can be maintained.

Explanation:

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