The lac operon of E. coli contains genes involved in lactose metabolism. The cell "prefers" glucose, and, if it is available, the lac operon is not activated, even when lactose is present. The catabolite activator protein (CAP), binds and deactivates the lac operon in the presence of glucose. Under which condition would the lactose operon be turned "on" if the CAP is present? Glucose absent & Lactose present Glucose present & Lactose present Glucose absent & Lactose absent Glucose present & Lactose absent
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The lac operon is involved in the metabolism of lactose in bacteria. Show more…
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