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Archiver > GENEALOGY-DNA > 2008-06 > 1212805384


From: Didier VERNADE <>
Subject: [DNA] SNPs on chip
Date: Sat, 7 Jun 2008 04:23:04 +0200 (CEST)


> >> But isn't that just what M73 is -- a two base pair deletion?
>
> >> --david
>
> > David,
>
> > You are right but if I have the deletion I should be M73+ while I was also tested M269+ (R1b1c). That's the problem...
> > I asked 23andme to check and I am waiting for the answer.
>
> I missed that part, very interesting indeed. Good luck with getting this figured out, Didier.
>
David,

I am following on this mail exchange because I find it interesting to underline that this is a case where the chip technology can only say + or - , that is deleted or not. An analysis by amplification and sequencing could tell if it's the same GT deletion as in M73 or a different kind of deletion (and exactly which one). On the other hand if it's confirmed it would be thanks to the global analysis allowed by the chip technology that this deletion was detected. So, in this case I would say that both approaches are complementary.

Didier


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