Someone I am acquainted with always suspected one of her grandparents
was Jewish. She tested with both Ancestry.com and Family Tree DNA who
show her to be 27-30% Jewish. I am trying to help her make sense of
her results. One thing that is confusing to me is that 99% of her
Family Finder matches on Family Tree DNA are Jewish.
Could someone please explain how someone who is 27% to 30% Jewish has
virtually all Jewish autosomal cousins?
Lakewood, Colorado, USA