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Archiver > GENEALOGY-DNA > 2007-05 > 1178126452


From: (John Chandler)
Subject: Re: [DNA] Double or single cousin?
Date: Wed, 2 May 2007 13:20:52 -0400 (EDT)
References: <c63.f025e8c.3369eb4f@aol.com>
In-Reply-To: <c63.f025e8c.3369eb4f@aol.com> (DNACousins@aol.com)


Ann wrote:
> Using five for the number of chunks struck me as a bit high

Note that this is a comparison between two siblings. Thus, there are
two separate and independent recombination events, with two separate
sets of crossover points. My figure was just a guess, but it can't
be too far off, and the standard deviation goes only as the inverse
square root.

John Chandler

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