Well, some are known as 'Great White Russians' for a reason, to distinguish them from those with Mongol and other bloodlines, How many modern Russians are still mostly 'pure' is up for debate. The Soviet Union was made up of over 114 different language groups and even more tribal groups, yet Russians are still a distinct people, so there is that. On the other hand it is still interesting to see 6' plus tall, blonde haired, blue eyed men and women with faces that look more Sinatic Asian than Mao's.