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12 July, 10:17

What is the relationship between the number of active genes and color of the skin

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  1. 12 July, 12:32
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    Skin color is polygenic trait meaning a lot of genes are significant in the expression of the trait. Such traits can have a multitude of variations showing continuous distribution because these non-epistatic genes have a cumulative effect on the skin color. The level of expression of these genes, majorly based on influence from the environment, will determine skin color. For example; the expression of the gene for melanin will be high in a person within the equator than in a person at the poles due to differences in sunlight exposure.
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