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How does gene regulation of the lac operon promote homeostasis in intestinal E coli bacteria?
Wiki User
∙ 9y ago
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoWhen lactose is present, the gene is turned on and makes the protein beta-galactosidase which breaks down lactose, which is then used as food for the bacterial cell. When lactose is absent, the gene is turned off and the protein isn't made, so the cell doesn't waste energy making a protein that isn't needed.
Wiki User
∙ 15y agoWhat is the advantage to E.coli for regulating the genes involved with lactose utilization
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