Tracking US Migrations with DNA

Guest: Ross Curtis, PhD, Manager of Computational Genomics, AncestryDNA People have been using DNA tests through the genealogy company, Ancestry, to find out where they’re from. The tests are conducted using test tubes of saliva sent in by people all over the country who are curious about their ancestry. After collecting so many, the company has decided to do something productive with all the left over DNA samples. They used the samples to map out how groups of people with common heritage have migrated around North America over the years. You can see the map here.