Wendy Roth

Professor of Sociology, University of Pennsylvania

An estimated 15% of all U.S. adults—approximately 30 million people—have taken genetic ancestry tests. Roth, author of Race Migrations: Latinos and the Cultural Transformation of Race, explains how such tests influence people’s perceptions of their ethnic and racial identities. Research demonstrates that people pick and choose new identities they like from their test results. Depending on people’s knowledge of science, ancestry tests can also affect their understanding of what race is.

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