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...monozygotic twins might be due epigenetic modification of the gene expression in the ...are epigenetic mechanisms? DNA-methylation - chemical modification of chromatin, that occurs on cytosine...a site-specific DNA-methylation or post-translatioinal histone modifications. So, in twin...” chromatin configuration characterized by repressive post-translational marks, increased nucleosome density and...

http://mariamrp.livejournal.com/2475.html
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Published: 4 months, 3 weeks ago (Mon, 29 Jun 2009 12:16:24 PDT); 5446 bytes
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