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Modern Human Diversity - Skin Color

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❶Population and admixture studies suggest a 3-way model for the evolution of human skin color, with dark skin evolving in early hominids in sub-Saharan Africa and light skin evolving independently in Europe and East Asia after modern humans had expanded out of Africa.

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Search Randy Shore on iTunes to download to your smartphone or tablet. The Paleo Diet Host Randy Shore welcomes paleo nutritionist Travis Steward and St. Pauls Hospital dietitian Sinead Feeney for a paleo diet cage match.

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Human skin color ranges in variety from the darkest brown to the lightest hues. An individual's skin pigmentation is the result of genetics, being the product of both of the individual's biological parents' genetic makeup, and exposure to sun.

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What Determines Skin Color? Skin color determination is an issue that has fascinated many people for a long time. It is by understanding of some of the factors that influence skin color that we can then find ways of modifying it without posing a risk to our health.

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Skin color is determined primarily by the amount and type of melanin, the pigment in the skin. Variation in skin color is largely due to genetics. As a general pattern people with ancestors from tropical regions and higher altitudes (hence greater UV light exposure) have darker skin than people with ancestors from subtropical regions. Skin color is one of the most visible indicators that helps distinguish human appearance, and a new study provides more detail as to how one protein helps produce this wide palette. In researchers identified a gene called SLC24A5 as a key determinant of skin color.

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Dec 16,  · Dr. Keith C. Cheng, an author of the report, and his colleagues showed that the golden version of the fish gene altered production of melanosomes, the tiny black particles of . Your ancestors' skin color is the biggest factor in determining your skin tone. © iStockphoto /Donna Coleman Your ancestors' skin color has the biggest influence on your skin tone, which is determined by the biological factor of genetics.