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Archiver > GENEALOGY-DNA > 2003-03 > 1047078723


From: Bonnie Schrack <>
Subject: [DNA] Re: new member with question
Date: Fri, 07 Mar 2003 18:12:03 -0500


Hi all,

Could I get some help in clarifying this, please? I was very intrigued
by Christie McGregor's rare test results and Bennett Greenspan's
message, but I had several questions. Just to begin with, I'm not even
sure if Christie is a male or female name - I had imagined that it was
a female name, but these are y-chromosome reports. They're from a
close male relative of Christie's? Here's what I thought I read:

1. Bennett Greenspan said the closest persons in the FTDNA database to
Christie were "at least 5 steps from you."

2. Christie is comparing these results with the Cohan modal haplotype.

3. C. lists 6 markers and says these test results only differ at
DYS#391. But the two lists of 6 markers also differ at DYS#19*; the
first list has 14 and the other one has 16. Are we just dealing with a
typo here?

4. Does the Cohan modal haplotype consist of just 6 markers?

5. Ann wrote, "you are one step off the Cohen Modal Haplotype." So
the other 4 steps referred to by Bennett Greenspan are not an issue?

6. Ann wrote, "I don't see much advantage in testing first cousins for
comparison."

But there has been a lot of discussion of the possible errors that any
lab can commit, and people have felt that running tests several times
would be a way to check for errors. If this very unusual result is
correct, then it would be even more interesting to have it confirmed by
a cousin's result.
Also, if there were a non-paternity event recently, wouldn't testing
cousins be a way to detect that?

Personally, if I were Christie, I would run and get as many family
members tested as possible, who are related in many different ways, to
see if all of them test out this way, or what.

Comments? Sorry if my learning curve still has a ways to go...

Bonnie Schrack




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