For vocabulary, see
Glossary of gene expression terms Gene expression is the process by which the inheritable information in a
gene, such as the
DNA sequence, is made into a functional
gene product, such as
protein or
RNA.Several steps in the gene expression process may be modulated, including the
transcription step and the
post-translational modification of a protein. Gene regulation gives the cell control over structure and function, and is the basis for
cellular differentiation,
morphogenesis and the versatility and adaptability of any
organism. Gene regulation may also serve as a substrate for evolutionary change, since control of the timing, location, and amount of gene expression can have a profound effect on the functions (actions) of the gene in the organism.
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