Thought you’d be interested.
bfl
“Despite their long-term residence in different countries and isolation from one another, most Jewish populations were not significantly different from one another at the genetic level.”
This is pretty remarkable. Even if only 1 or 2 % of the Jewish population ignored the prohibitions against intermarriage, over such a long period of time, it would have made a pretty big difference.
It says a lot about the pretty extreme degree of isolation the community must have had over the long term.