MadSci Network: Genetics

Re: What is intergenic DNA compared to introns and exons?

Date: Fri May 5 16:40:29 2000
Posted By: Gabriel Vargas M.D.,Ph.D., Post-doc/Fellow, Neurosciences/Psychiatry
Area of science: Genetics
ID: 949627541.Ge

In contrast to bacteria which have no introns, eukaryotes (cells with a 
nucleus) have introns which are intervening sequences within genes which get 
spliced out when genes are transcribed and are not expressed in the protein. 
In contrast, exons are the sequences within a gene which do get expressed 
and translated into protein. Intergenic DNA, as the name suggests, is DNA 
between genes which does not code for proteins.

Hope this helps
gabriel vargas md/phd


Genes VII 
by Benjamin Lewin 

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