Question

what is self pollination and cross pollination in 50 words
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Answer 1

Answer:

Self-pollination occurs when the pollen from the anther is deposited on the stigma of the same flower, or another flower on the same plant. Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species.

Answer 2

Answer:

Self-pollination or autogamy is the transfer of pollen grains from the anther of a flower to the stigma of the same flower or from one flower to another on the same plant.

Cross-pollination or allogamy is the transfer of pollen grains from the anther of a flower to the stigma of the flower, borne on a separate plant of the same species.

Cross pollination is more useful because it results in combination or mixing up of characters thus, improving the quality or vigour of the species. Continued self-pollination results in loss of vigour and finally leads to sterility.