Cell nucleus: Difference between revisions
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Revision as of 23:14, 23 March 2009
The cell nucleus is the membrane-bound region in the center of a cell that contains the cell's genetic material. This genetic material is in the form of chromatin, a complex of DNA and various "spool" proteins. An apparent structure inside the nucleus is a darker region called the nucleolus, which is the site where ribosomes are assembled.