GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2003-11 > 1068674780
Subject: Re: [DNA] Need Help in Matching Y-DNA Markers
Date: Wed, 12 Nov 2003 17:06:43 -0500 (EST)
In-Reply-To: <firstname.lastname@example.org> (JULIAFWOOD@aol.com)
> 8998 -1324141111151212121313291791011112515192914151717
> I hope these number come through okay, but I need help in matching them.
> Notice the top person # 8998 and the bottom #11074 have mutations on only two
> markers, but one is a three step mutation. Do I count that as four mutations? I
> am puzzled by all four of these, can I count the top three as bridge matches?
On the one extreme, you would count that as four mutations, but the
genetic distance would be the sum of squares: 9+1=10. On the other
extreme, you would treat the 3-step difference as a (rare) 3-step
mutation that probably rates a distance of about 2 (not to be squared),
for a total distance of 3.
I wouldn't count any of these four as a bridge connecting any pair