GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2005-08 > 1123112738


From: (John Chandler)
Subject: Re: [DNA] SNP mutation rates
Date: Wed, 3 Aug 2005 19:45:38 -0400 (EDT)
References: <IGEOKAGLHNEKPCKPADIGOEIKKEAA.bbailey.lowedna@baileyconnection.com> <REME20050803190044@alum.mit.edu> <090b01c59884$6238c5c0$0200a8c0@c452380a>
In-Reply-To: <090b01c59884$6238c5c0$0200a8c0@c452380a> (ecbeaty@comcast.net)


Earl wrote:
> A very low mutation rate would normally mean the many men would have had no
> mutations at all since Y-Adam.

The answer to this puzzle is the size of the Y chromosome: 60 million
base pairs. If the mutation rate is 2 x 10^-8 per base pair per
generation, that gives an expectation of about one new SNP for every
man ever born.

John Chandler

This thread: