On today's show, Arslan Zaidi (UPenn School of Medicine) joins us for a conversation about genetics, complex traits in humans, skin pigmentation and facial shape. Arslan is also doing research on the biases that exist in genome-wide association studies (GWAS) and we also talk about what problems exist in interpreting ancestry test results. For more info: http://archandanth.com/ See the Patreon page for details on how to support the show: https://www.patreon.com/archandanthpod