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Archiver > GENEALOGY-DNA > 2003-11 > 1068601838


From: "Nancy Custer" <>
Subject: RE: [DNA] DYS464 / new primer
Date: Tue, 11 Nov 2003 17:50:38 -0800
In-Reply-To: <161.27f23266.2ce261b1@aol.com>


So did Patrick send you this? I have it. Took me a while to get around
to finding it.

Nancy

-----Original Message-----
From: [mailto:]
Sent: Tuesday, November 11, 2003 8:01 AM
To:
Subject: Re: [DNA] DYS464 / new primer

In a message dated 11/11/03 7:15:37 AM Pacific Standard Time,
writes:

> The mutation-rate estimate based on the 70
> meioses analyzed
> amounts to 2.86?10-2 (95% confidence interval 3.5?10-3 to
> 9.95?10-2). This value
> is approximately 10 times higher than the average
> mutation-rate estimate for
> Y-STRs.
>

Patrick, do you have access to the full text? I'm curious about the
mutation
rate. First, was it father-son pairs? Did they give the actual
differences?

I see the confidence interval is very wide, because there were just two
mutations observed and the sample size is small. I assume the two
mutations could
have come from ANY of the four copies of DYS464. It seems to me that it
would
be more appropriate to divide the observed mutation rate by 4, since
there were
70x4 opportunities to observe a mutation in the set.

Ann Turner - GENEALOGY-DNA List Administrator
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