But how would you account for the Jews who knew there tribes in Ancient Israel that brought fourth the Christian faith? basically all the first followers of Jesus were Jews? not one gentile, they all had families all jews as well? did they just fizzle out as fas as there DNA is concerned? Why would they have less Hebrew DNA then of a Modern Jewish person who does not know there tribe or has been assimilated?
Or say a Jew who converts to another religion? how does that change there DNA? this is what I don’t understand what you are saying in regards to genetics?
You are either a Jew or a Gentile..What does it matter if you convert to Islam Christianity, Scientology etc...
The remainder assimilated. Their "Hebrew" DNA passed throughout the generations into a much, much larger pool, and became so diluted as to not really be measurable.
On the other hand, in areas where vast numbers of Jews were forcibly converted and assimilated, distinctive Hebrew DNA signatures have been left. A case in point, as I mentioned earlier, is Spain - where 20% of the population has verifiable Jewish ancestry through genetics. Or, for that matter, the Palestinians, who have strong genetic influences not only from Arabs, but also from Jews, Samaritans, Greeks and European Crusaders who assimilated over the centuries.
Unlike the descendants of Jewish-Christians (where, after 80 generations or so, their Hebrew DNA is minimal), most modern Jews (Ethiopians and modern converts excluded) have a very strong component of "original" Hebrew DNA -- likely more than 50%. That's why we can categorize something as "Jewish/Hebrew" DNA in the first place -- because there are certain markers found in Jewish populations at very high frequencies.