An operon that would be controlled by both presence of lactose and low levels of glucose would need two control mechanisms: first, a(n) _______ system to turn on genes to use lactose when it is present, and then a positive regulation system to only turn on lactose metabolism genes in the absence of glucose.

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The Answer of An operon that would be controlled by both presence of lactose and low levels of glucose would need two control mechanisms: first, a(n) _______ system to turn on genes to use lactose when it is present, and then a positive regulation system to only turn on lactose metabolism genes in the absence of glucose.

An Operon That Would Be Controlled by Both Presence of Lactose