About the Author


Rabbi Yaakov Kleiman

Rabbi Yaakov HaKohen Kleiman is a lecturer at Aish HaTorah, Jerusalem,
specializing in Temple studies. He is co-director with Rabbi Nachman Kahana,
of the Center For Kohanim.


Abraham's Chromosomes?

In search of the historical Abraham.

Jewish Genes

There is now new and exciting DNA evidence for common Jewish origin -- not just among Cohanim, the Priestly Class, but among Jews scattered all over the globe.

The Cohanim - DNA Connection

The fascinating story of how DNA studies confirm an ancient biblical tradition.

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