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Re:Why Jewish History Is So Hard to Write by your-nanny on Thursday April 05, 2018 @11:27AM (#16765766)
I would dispute the notion of common ancestry is synonymous with common transfer of genes. The former is about descent, within a system of kinship, that may or may not recognize within it's domain an actual realized transfer of genes on the one hand, and may include in it's domain instances when no such transfer might have occurred (adoption/cuckoldry/politically motivated claims of kinship/etc.etc.).
Re:Why Jewish History Is So Hard to Write by vasilipupkin on Thursday April 05, 2018 @02:15PM (#16767459)
come on, you are engaging in pointless sophistry. Common ancestry doesn't mean that it involves 100% guaranteed common transfer of genes every time - it just means that common transfer of genes was quite likely to take place at least relatively often. In the case of Ashkenazi Jews, we know it did.
Re:Why Jewish History Is So Hard to Write by jklinger410 on Thursday April 05, 2018 @02:53PM (#16767859)
I'm just trying to point out that you don't have to share genes with an ethnic group to belong to it.
Re:Why Jewish History Is So Hard to Write by vasilipupkin on Thursday April 05, 2018 @03:50PM (#16768297)
this is not about "have to" or "don't have to", but about likelihood. Likelihood is high enough that they do genetic testing on ashkenazi jews.