GENEALOGY-DNA-L ArchivesArchiver > GENEALOGY-DNA > 2005-07 > 1121308851
From: victor villarreal <>
Subject: Re: [DNA] Pregnant Women and Y-Chromosomes
Date: Wed, 13 Jul 2005 21:40:51 -0500
I doubt that Y-DNA (from male fetus) would show in a standard cheek swab in
a pregnant woman.
This is related to a phenomenon known as "microchimerism" and it can also
happen in recipients of donor organs or after a blood transfusion.
On 7/13/05, proofer joan <> wrote:
> Dear List,
> et al have articles on detection of y-chromosomes from
> male fetal blood that circulates in pregnant women.
> Would enough Y-chomosomes be present in a pregnant
> woman to be picked up by a standard cheek swab?
> Of course, it would be easier (in most cases) to ask
> the father to submit a sample, but an interesting
> Sincerely, Joan
> (on vacation)
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