Given that the default for E. coli’s lactose operon is to re…
Given that the default for E. coli’s lactose operon is to remain off, what needs to happen for it to be activated? A. A lactose molecule in the environment binds to an enzyme within the cell membrane B. The rate of glycolysis increases, giving E. coli the energy necessary to turn the lactose operon on C. A lactose molecule moves through the cell membrane using a pore and binds to a repressor protein on the operon’s DNA strand, causing the repressor protein to change shape and fall off D. An excess of galactose in the cell kickstarts the transcription process
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