Quote from: Vegan Jughead on August 19, 2017, 08:51:51 AM
"Just Because I'm Irish" by Jonathan Richman and Julia Sweeney
I just got my DNA test back and after my whole life thinking I was mostly French, I find that I'm more Irish than French!
They can tell what nationality your ancestors were by a DNA test? How does that work, exactly?

It's not like DNA testing has been around that long, so what's their basis for sorting genomes based on geographical residence? I mean, how many people ever even get a DNA test that's looking at region-specific factors? Especially when you consider that people do tend to move around, ever since things like horses, boats, and even feet became all the rage for the mobility thing.