Problem:
Question 1: What happens to a bacterium that has an entirely normal lac operon in the presence of lactose and glucose? Explain fully.
Question 2: What happens when the poly(A) tail drops to about 30 nucleotides? In one mRNA degradative pathway, what piece of evidence suggests that the two ends of the mRNA are held in close proximity?Where do deadenylation, decapping and 5' -> 3' degradation occur and what else can happen in this location?
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