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 the last decade have shown that many men with a family tradition of being Cohanim belong to the same genetic Y-chromosome lineage. This is the Cohanim Modal Haplotype (CMH). In popular culture, it is sometimes misnamed the Kohanim Gene.

If your Y-chromosome DNA (Y-DNA) test results indicate that you carry the CMH, we note this by showing a Cohen Match badge on your My Account – Personal Profile page. To check:

  1. Sign in to your account.
  2. Look on the upper left for a badge with two hands and the words Cohen Match.

This indicates that you match the set of results associated with Cohanim ancestry, known as the Cohanim Modal Haplotype. If you do not see this, your line is not part of the CMH. However, this does not mean that your line is not of Jewish ancestry. Nor does it preclude your having a valid tradition of Cohanim ancestry that stretches back hundreds of years.