The Cohen Modal Haplotype Badge

If you have a The Cohen Modal Haplotype badge in the Badges section of your dashboard, it means that you match or are close to the historic Cohen Modal Haplotype (CMH). One of the earliest […]

Do I have Jewish ancestry on my direct paternal (Y-chromosome DNA) line?

Judaism is a religion and not an attribute definable by a DNA mutation, but we can give you hints about having Jewish ancestry by comparing your results against our database. Look on the Y-DNA – […]

How does the nature of Jewish genealogy make autosomal DNA research more challenging?

Using Family Finder results for genealogy is more challenging for individuals of Jewish ancestry because of a lack of genealogical records, surname changes, and frequent intermarriage. The lack of genealogical records means that finding the […]

How does the nature of Jewish genealogy make Y-DNA research more challenging?

Because Jewish genealogists cannot assume that paternal line ancestors have had the same surname for over 300 years, interpreting close and exact matches requires more thought and consideration than would otherwise be the case. Where […]

How does Y-DNA help with the challenges of Jewish Genealogy?

Unlike many other populations, the Jewish people adopted hereditary surnames relatively recently. Surnames changed during recent emigrations. Some families modified their surname spellings to fit with local norms. By testing the Y-chromosome DNA, you and […]

Is my direct paternal (Y-chromosome DNA) line Cohanim?

Because the Jewish populations of the world have suffered many trials and population upheavals, it is not possible to say definitively that one person is genetically Cohanim while another is not. However, scientific papers over […]

Do I have Jewish ancestry based on my Family Finder and myOrigins results?

Judaism is a religion and not an attribute definable by a DNA mutation, but we can give you hints about having Jewish ancestry by comparing your Family Finder results to those of known Jewish ancestry […]

How do I tell if I have Jewish ancestry on my direct maternal (mitochondrial DNA) line?

Judaism is a religion and not a genetic attribute that can be defined by a DNA mutation. However, because Jewish populations have been endogamous for much of their history, hints to your Jewish ancestry for […]

What percent of Jews carry the Cohanim Modal Haplotype (CMH)?

From surveys of markers in Jewish cemeteries, about 5% of Jewish men have historically been Cohanim. Genetic research indicates that many Jewish men who self-identify as Cohanim belong to the Y-chromosome DNA lineage that is […]

What are the challenges of Jewish genealogy?

Jewish genealogy includes many challenges that mean more frequent and problematic road blocks for the Jewish genealogist than for the non-Jewish genealogist. The following are some of these challenges: Surnames that pass from father to son […]