>>71963233>>71963619>>71964304>>71964556The majority of modern japanese have some "jomon ancestry" technically, but as a total percentage of possible jomon genes, the unique genetics from the jomon period is are a tiny minority at this point.
Individuals are individuals, and you might get some ainu-lookin' motherfucker with a beard that puts an Iranian to shame, and the opposite is also true. Most modern japanese have more genetics in common with modern koreans, than they do with some historical individual in the jomon era. This includes the imperial clan, who are probably share more genetics with koreans than their subjects do.