Katarzyna ("Kasia") Bryc is a Population Geneticist at 23andMe. Dr. Bryc has developed statistical models that leverage genetic data to learn about ancient human history and migrations, recent population admixture and other forces shaping the human genome. Her prior research illuminated the genetic population structure of Africans, and the complex admixture of African Americans and Hispanic/Latino populations. Dr. Bryc received a B.A. from Stanford University, and her M.S. and Ph.D. in Biometry at Cornell under Dr. Carlos Bustamante. Prior to joining 23andMe, she was a NIH Ruth L. Kirschstein National Research Fellow at Harvard Medical School with Dr. David Reich, where she developed statistical methods to infer genetic diversity from sequence data.