http://science-nature.marc8.com/news-tags/junk-dna The taxonomy view with a depth of 0. en http://science-nature.marc8.com/new-gene-silencing-pathway-found-plants-0 <p>Biologists have made major headway in explaining a mechanism by which plant cells silence potentially harmful genes. New research in Cell explains how RNA polymerases work together to use the non-coding region of DNA to prevent destructive, virus-derived genes from being activated. This research adds to a growing body of evidence suggesting that "junk DNA" is in fact a functional part of the genome, since transcription of the intergenic regions is necessary to keep potentially harmful genes turned off.<img src="http://feedproxy.google.com/~r/sciencedaily/~4/-asUqGBV8h0" height="1" width="1" /></p> http://science-nature.marc8.com/new-gene-silencing-pathway-found-plants-0#comments body of evidence destructive virus intergenic regions junk dna plant cells http://science-nature.marc8.com/crss/node/11939 Wed, 19 Nov 2008 18:45:12 -0600 admin 11939 at http://science-nature.marc8.com http://science-nature.marc8.com/ancient-protein-balances-gene-activity-and-silences-foreign-d <p>Compared to humans, bacteria have a much tidier genome. The tiny microorganisms pack their genes closely together, and don't carry around a lot of extraneous DNA, so-called junk DNA that fills in the gaps between genes. Some 90 percent of the complete genome sequence of the bacteria E. coli contains sequences of DNA that code for protein, while 90 percent of the human genome is non-coding junk DNA.<img src="http://feeds.sciencedaily.com/~r/sciencedaily/~4/293512981" height="1" width="1" /></p> http://science-nature.marc8.com/ancient-protein-balances-gene-activity-and-silences-foreign-d#comments Top stories complete genome sequence gene activity junk dna silences tiny microorganisms http://science-nature.marc8.com/crss/node/4723 Mon, 19 May 2008 10:15:15 -0500 admin 4723 at http://science-nature.marc8.com