Expression of a gene

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Revision as of 14:00, 4 August 2009 by Henrik (talk | contribs) (New page: {{encyclopedia|moderator=Henrik}}expression of a gene, reading a genetic information from DNA to make a new protein (see DNA and RNA). Every cell contains every gene of the individual, but...)
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expression of a gene, reading a genetic information from DNA to make a new protein (see DNA and RNA). Every cell contains every gene of the individual, but only some are expressed in any particular cell, and often only at a particular time. Proteins involved e.g. in the synthesis of skin pigment are expressed only in certain layers of the skin, and not in the gut; even in the skin the rate of expression depends on the stimulation by sunlight.