GENEALOGY-DNA-L Archives

Archiver > GENEALOGY-DNA > 2010-03 > 1269816076


From: "Belinda Dettmann" <>
Subject: Re: [DNA] 23andme cousin results
Date: Mon, 29 Mar 2010 09:46:01 +1100
References: <CCC182DA-E426-430A-BA37-355BD4D5E8AD@earthlink.net><ea3bd9561003272128k3b567d83y190aeb937b77803b@mail.gmail.com><253CFBB8-15B8-4B84-81E5-A4F86DEEC8D7@earthlink.net> <ea3bd9561003280921v52a58139o5e8c730e640c5c7f@mail.gmail.com> <00d901cace95$a4b8bda0$5e82af48@Ken1> <CB6050F2-F6A2-4324-A8E2-060B8829AD1E@earthlink.net> <D7B87A3F-726C-41FA-9C5C-B230DEE984A6@vizachero.com><005801cacec2$aed2d370$0c787a50$@com>
In-Reply-To: <005801cacec2$aed2d370$0c787a50$@com>


You need to distinguish between two different measures of similarity. One
compares on all single SNPs tested, and you and a sibling will match roughly
85%. The second is the degree of similarity on shared segments, where you
and a sibling will share about 50%, usually between 45% and 55%.

Belinda

From:
[mailto:] On Behalf Of Max Heffler

Where are these percentages? My dad's sample matches mine at 48.43% DNA
Shared. Are you referring to the genome compare % similar? He and I are
83.93% similar there, implying my parents were genetic strangers according
to the formula below and both being Ashkenazi I would think they would be
closer than genetic strangers.



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