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Hello everyone in this question we will be discussing about antagonistic pleotropy.
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First of all let us understand what is pleotropy.
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So this pleotropy means that a single gene protects two or more characters.
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For example, the gene mutation in beta -glotropy.
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Chain of hemoglobin, that is the sickle cell anemia in which the glutamate, is changed to value.
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So the mutation in this gene affects the eye.
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It also affects the liver and the heart.
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These are the multiple traits of just one gene mutation.
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And the antagonistic pleiotropi is basically the theory for evolutionary origin of aging.
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According to the antagonistic pleiotropy, aging is the side effect of genes that are selected for their contribution to fertility, essential components of individual fitness.
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The example of antagonistic pliotropy is the testosterone.
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Testosterone level in male.
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Higher levels of this hormone lead to increased fitness in early life while causing decreased fitness in later life due to a higher risk for prostate cancer...