Question

what is self incompatibility
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Answer 1

Self incompatibility is one of the several strategies that bisexual flowers have evolved to have in order to prevent self pollination.

• Self incompatibility is a genetic mechanism

• This mechanism help in the prevention of pollination that may occur due to the pollen grain of the same flower or other flowers of the same plant.

• This mechanism includes inhibition of pollen germination and pollen tube growth into the pistil.

Answer 2

Answer:

Self-incompatibility is a widespread mechanism in flowering plants that prevents inbreeding and promotes outcrossing. The self-incompatibilityresponse is genetically controlled by one or more multi-allelic loci, and relies on a series of complex cellular interactions between the self-incompatible pollen and pistil.

Self-incompatibility is a condition where pollen is not able to fertilize the same flower or other flowers on the same plant due to inhibition of the growth of the pollen tube in the stigma and style, thereby preventing delivery of male gametes to the ovules

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