Saturday, January 3, 2009

Term of the Day


Introns: Nucleotide sequences that have no known cellular function (i.e they don't "code" for anything). Introns account for much of the DNA in the genomes of eukaryotes, and are often found within a gene, interrupting its nucleotide sequence. Prevailing thought holds that introns are remnants of sequences that were active and important earlier in evolutionary history.

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