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UNA COPIA GRATIS DE NATURE CON LA INFORMACION DEL CROMOSOMA 21..

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----- Original Message -----
From: <announce@...>
To: <trastor@...>
Sent: Monday, May 15, 2000 6:54 PM
Subject: Nature: A FREE SAMPLE COPY of Chromosome 21 issue


> Dear Colleague:
>
> We are very pleased to offer all users of Nature's electronic services a
> FREE sample of the May 18th issue of Nature.  To request a free print copy
> containing the Chromosome 21 paper, use the order form at:
> http://www.nature.com/marketing/freecopy/
>
> These free copies of Nature are produced with support from Applied
> Biosystems -
>   http://www.appliedbiosystems.com
> Forward this e-mail to let your friends and colleagues know about this
> special offer.
>
> Chromosome 21 is the second human chromosome sequence to be documented,
> encompassing more than 33 million base pairs of DNA, and its publication
> therefore marks a major scientific milestone. A striking feature of the
> chromosome is that it contains less than 300 discernible genes. This
implies
> that the whole human genome may contain no more than 40,000 genes, many
> fewer than previously thought.
>
> The chromosome sequence reveals the organisation of a number of genes
linked
> to specific human disorders, and will speed the search for several more
> disease-linked genes. The availability of this sequence will also provide
> valuable tools for investigating the basis of Down syndrome, which is
caused
> by the inheritance of three (rather than the normal two) copies of
> chromosome 21.
>
> Yours sincerely
>
> Richard Gallagher
> Biological Sciences Editor
> Nature
>
>
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