Genetics shows that 90% of the worlds Jews carry the same markers as the Jews from Biblical times.
Total BS!
There are no "Jewish genes", because conversion to a religion does not change the person's genes.
Nobody knows what genes the "Biblical Hebrews" had, because they were also converts.
Some Jews from the Cohen-Clan (about 3% of Jews) can trance their male lineage to the Middle East, but this does not mean that their male ancestors were Hebrews. They may have been oriental pagans that converted to Judaism in the Middle Ages.
What to the maternal lineage of Ashkenazim (and that is about 50% of ancestors), the "founding mothers" of Ashkenazim communities stem from European women.
If Judaism is traced according to the maternal line, then Ashkenazim are not Jews at all.
Jews are a mosaic of very different races and people, the same is true with any religious group, including Muslims and Christians.
A MOSAIC OF PEOPLE: THE JEWISH STORY AND A REASSESSMENT OF THE DNA EVIDENCE
Ellen Levy-Coffman
A Reassessment of the Jewish DNA Evidence