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Archiver > GENEALOGY-DNA > 2005-09 > 1127716909


From: "Eric Olson" <>
Subject: Re: [DNA] Haplogroup mixing effect on mutation rates
Date: Sun, 25 Sep 2005 23:42:01 -0700
References: <auto-000008085146@mail1.warpdriveonline.com>


How could a woman be R1a?

Eric Olson


----- Original Message -----
From: "Glen Todd" <>
To: <>
Sent: Sunday, September 25, 2005 4:40 PM
Subject: RE: [DNA] Haplogroup mixing effect on mutation rates


>
>> With regards to the father son mutation rate studies, does
>> anyone know if it has been also investigated whether
>> haplogroup mixing of the parents affects the mutation rates?
>> For more clarity, would more mutations be observed
>> if the parents were of different haplogroups (ie. R1a
>> and E3b) versus being both of the same haplogroup
>> (ie. both R1b). I suspect that the assumption is that
>> the mother's DNA does not have an impact. However,
>> IMHO, it seems to be something worth investigating.
>
> Peter;
>
> Superficially this is an interesting idea, and I can see where your line
> of
> reasoning might lead. However, in my understanding the joker in the
> deck
> is that the Y-DNA of the mother's father simply is not expressed in the
> mother at all due to the fact that women do not carry the Y chromosome,
> and
> therefore the only possible source is the father. In other words, the
> mother does not HAVE a Y-haplogroup (mt-haplogroups are totally different
> things), so there's no source for 'mixing'.
>
> Glen
>
>
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