I was browsing through Eichlers today and came across "The DNA of Tradition" by Rabbi Yacov Klienman and was immediately hooked. The author has been doing genetic research and postulates that since all Kohanim come from the same ancestor which is Aaron they must share the same genetic marker. From doing research with various scientists his studies came to fruition as his hypothesis was proven.
To read more about this subject check out this link.
I think this is another scientific proof of the validity of the Bible.
