Almost all genetic genealogy websites will tell you the origins of your DNA. But I would like to go one step further and find out which parts/segments of my DNA are related to a specific ethnicity.
I have a very rough map of my DNA -- as it relates to shared common ancestors for my matches. If I could isolate specific segments for a specific locale, I might be able to link this to an ancestor. For instance, I am told by several sites, that I have about 20% scandinavian DNA. Is there a way to find which part of my DNA is Scandinavian? (I'm assuming that if this can be done, it will be with a tool on GEDmatch.com.)