Archiver > GENEALOGY-DNA > 2010-03 > 1268627627

From: Steven Bird <>
Subject: Re: [DNA] Clades, Definitions, Discoveries, FTDNA
Date: Mon, 15 Mar 2010 00:33:47 -0400
References: <>, ,<SNT115-W100A5F4E30C0231B9E890ACC2E0@phx.gbl>, ,<016301cac3e3$fe0b33e0$5e82af48@Ken1>,<SNT115-W544368FA05A091575BBEABCC2E0@phx.gbl>,<01a401cac3f7$b5a9c120$5e82af48@Ken1>
In-Reply-To: <01a401cac3f7$b5a9c120$5e82af48@Ken1>

There is on average one SNP for every 1000 base pairs in the human genome. Most of them are useless for purposes of genetic genealogy. What is your point?

> We could do a careful estimate of how many father/son transitions there are
> in the total y tree back to genetic Adam. And I assure you it will be many
> billion. So if the probability that a snp site to mutate each father/son
> transition is YOUR one in a billion, that means that site mutates many times
> at different places in the y tree.
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