U.S. is growing more genetically diverse

DNA study shows rise in numbers of ethnically mixed people

A multiethnic family

BLENDED  Multiethnic families are becoming increasingly common in the United States, a new genetics study suggests.

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BALTIMORE — The American melting pot is more flavorful than ever, a new study reveals.

Except for a dip in the 1940s, genetic diversity in the United States has been increasing every decade since 1920, Amir Kermany, a computational biologist at AncestryDNA, reported October 9 at the annual meeting of the American Society of Human Genetics.