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December 1, 2022

The Largest-Ever Study of Medieval Jewish Genetics Shows a Population More Diverse Than Expected

Some were more European than today’s Ashkenazim, other more Middle Eastern.

By studying the DNA of 37 13th- and 14th-century Jews buried in the German city of Erfurt, and comparing it to modern information about Ashkenazi genetics, a group of scientists have found some groundbreaking results. Among much else, they found that one woman had the same BRCA-1 gene—which can cause breast or ovarian cancer—carried by many Ashkenazi women today. Amanda Borschel-Dan reports:

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