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Archiver > GENEALOGY-DNA > 2001-01 > 0980485582


From: "Ralph Turner" <>
Subject: [DNA] Re: GENEALOGY-DNA-D Digest V01 #17
Date: Thu, 25 Jan 2001 21:06:22 -0800
References: <200101252200.f0PM0se08408@lists5.rootsweb.com>
In-Reply-To: <200101252200.f0PM0se08408@lists5.rootsweb.com>


The February 2001 issue of Scientific American has an article on the Y chromosome and how it works. This includes the statement (again) that I indicated earlier: "...Others, including mammals, invoke a process called X inactivation, in which cells of early female embryos randomly shut off most of the genes in one of their two X chromosomes..." This would not affect markers but would have an effect on genes that are not used. I don't think there is anything new in this article but it is pretty well written so is recommended on that basis. Oh yes it is mercifully short as well:
Jegalian, Karin and Bruce T. Lahn: "Why the Y is so Weird." Scientific American Vol 284 # 2, p 56-61.

RT

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