Does Jewish DNA always show up in a DNA test?

My brother’s DNA test showed some DNA from an African country/population, and mine did not. However, my DNA test did show some European Jewish heritage, while his did not. This is normal. read more

Both the Maternal DNA Test (mothers ancestry) and Paternal DNA Test (fathers ancestry) show your genetic family line, where in the world your genetic ancestors lived and if these areas were common to Jewish populations. Most Jewish populations lived in a few specific areas of the world. read more

If you do a DNA test of your own and find you have Ashkenazi strains, then you are definitely one of the 11.2 million estimated descendants of one of these 350 Jewish people. But if you don’t have any it doesn’t mean there is nobody Jewish in your lineage, it simply means if there were, they weren’t from the Ashkenazi group. read more