DNA ties Ashkenazi Jews to group of just 330 people from Middle Ages
By KAREN KAPLAN, LA TIMES— All of the Ashkenazi Jews alive today can trace their roots to a group of about 330 people who lived 600 to 800 years ago. So says a new study in the journal Nature Communications. An international team of scientists sequenced the complete genomes of 128 healthy Ashkenazi Jews and…