HOW BREEDING CHANGED THE DNA OF AFRICAN AMERICANS

How this turbulent history shaped the genes of African Americans has been unclear because, until recently, most genetic studies have focused either on populations from different geographical regions around the world, or on Americans with European ancestry. Fortunately, African Americans are now being included in these studies on a larger scale, and several long-term studies have collected genetic data on thousands of African Americans, representing all areas of the country. In a recently published study, a team of researchers at McGill University in Montreal turned to this data to take a broad look at the genetic history of African Americans.

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