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Archiver > GENEALOGY-DNA > 2002-09 > 1031233922
From:
Subject: Re: [DNA] Best DNA Test Labs
Date: Thu, 5 Sep 2002 09:52:02 EDT
In a message dated 09/05/02 6:41:00 AM Pacific Daylight Time,
writes:
> Information I looked up indicated a perfect match with 25 markers indicated
> a 50% probability at 3.6 generations, with the bell curve running down from
> there to a 95% chance at 40 generations.
This was probably information you found on Ancestry. They appear to be
assuming a higher mutation rate than the other labs. Bruce Walsh (a
population geneticist who is affiliated with FTDNA) has a discussion of how
mutation rates affect calculations:
http://nitro.biosci.arizona.edu/ftdna/TMRCA.html
Ann Turner
GENEALOGY-DNA List Administrator
http://lists.rootsweb.com/index/other/Miscellaneous/GENEALOGY-DNA.html
DNA preservation kits: http://www.dnafiler.com
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