GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2007-04 > 1176468607
From: "Sasson Margaliot" <>
Subject: Re: [DNA] Ten Lost Tribes, Far East, esp. Japan
Date: Fri, 13 Apr 2007 15:50:07 +0300
On 4/13/07, C. Koch <> wrote:
> I was just reading this again, and was wondering why it couldn't be
> the other way around - why couldn't the Cohanim have originally been R1a1
> and then interbred with another group of J, etc.
The reason is that Y chromosome exists only in males, and is passed from
father to son.
Once the "mutation" is introduced, it is copied to all following
The group R has accumulated seven mutations
known as M9, 92R7, M45, M74, P27, M207, M306
The group J does not have all this mutations. To turn from R to J, one needs
to undo all these seven mutations !