I wrote a long post 4 months ago. Since then, wife and I got Family Tree's autosomal tests. Mine came out "100% East Asian", no indication of where the red hair on my maternal grandfather (inherited by me and my 3 siblings) came from. Only surprise so far: we are 5th cousins. Discovered 14...
I'd be very interested in which company gave you the Japanese ancestor result; I have delayed buying a DNA test until one or more companies compiles a decent Asian database. Hope some of the following may help you--
Here's what I know about cultural cross-seeding of Japanese and Europeans: (I...
