I'm Ashkenazi.........my father was a Galitzianer (now Poland, but my father always claimed Austria, as it belonged to Austria when he was born), my mother was from Odessa. Both families moved to Germany after WW1, because (at the time) it was the safest place for Jews in Europe...well, so much for that idea. Long stories about their histories! But there is a "Jewish Y-chromosome" that is very distinct....found in most Jews, both Ashkenazi and Sepahrdic. Interestingly enough, there was a tribe in Southern Africa (not sure which country) that claimed to be Jewish. That was always disputed...until they were tested. Apparently, they do have the Jewish Y! Interestingly, according to my youngest son, the Bedouins also have that Y chromosome.