PSintend0 on 19 February 2018
Here is a study about finnish people: http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0003519
Here are few things that can be found from it:
"once again illustrating how most of the human genetic variation is found between individuals instead of populations"
" In fact, the differences between Eastern and Western Finns were of the same magnitude as the differences between Swedes and British, and much stronger than those between British and Germans. Thus, relevant units of genetic variation often do not correspond to preconceived political, linguistic or even cultural borders."
"Our results warn against a priori assumptions of homogeneity among Finns and other seemingly isolated populations."
