A new study finds the genetic backgrounds of people in the U.S. are "highly complex" and may differ from their self-defined ...

A large government study published Thursday shows more definitively than ever before that Americans’ self-reported race is a ...

Genetic ancestry is much more complicated than how people report their race and ethnicity. New research, using data from the ...

Genetic ancestry is much more complicated than how people report their race and ethnicity. New research, using data from the ...