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REGULATION OF BACTERIAL GENE EXPRESSION

REGULATION OF BACTERIAL GENE EXPRESSION - REGULATION OF...

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REGULATION OF BACTERIAL GENE EXPRESSION   Cells must regulate the synthesis of proteins, making only those proteins that are needed at any  particular time. Many of these proteins are enzymes, which catalyze the chemical reactions that  occur within the cell. By regulating the activity of the genes that code for these enzymes, all of  the chemical activity of the cell can be regulated.      Many of the bacterial proteins are always needed, so the genes for these proteins are not  regulated. These are known as constitutive genes, and their products are constantly produced, so  these genes could be said to be turned on at all times. An example of enzymes that would be  classified this way are the enzymes needed for glycolysis.    Other genes must be regulated, since their proteins are not needed at all times. This is done in 
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