Peter,
Could you send me your information on your line of Carroll's?
I'll try to see if any of your Carroll's intersect with my line of
Carroll's.
Thank You.
Larry Carroll
lcarroll(a)toledotel.com
----- Original Message -----
From: "Peter Carroll" <peter.carroll4(a)tesco.net>
To: <carroll-dna(a)rootsweb.com>
Sent: Wednesday, March 12, 2008 12:15 PM
Subject: [CARROLL-DNA] Mutations
Hi all,
I've just recently got back the full results of my DNA test and have been
trying to get to grips with the significance of them, and it seem that the
more I think I understand how it all works, the more questions I have.
Hopefully someone here may be able to answer some of them.
I think I'm right in saying that a marker can mutate in either direction
so that someone with a repeat count of, say, 13 at DYS393 could have one
descendant who has 14 at that marker, and another with 12, but is it
possible for a mutation to be reversed? Could a person with a repeat count
of 13 have a descendant with 12 who then goes on to have a descendant of
his own with the same marker mutated back to 13? Following on from this,
would it be possible for the DNA of two unrelated family lines with the
same surname to mutate towards each other with the genetic distance
decreasing, rather than increasing, over the generations, and if so,
couldn't this lead to false matches?
Hopefully there's someone out there who I've not managed to confuse and
who can clear up these points for me.
Peter Carroll
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