Essay
In E. coli, lactose (allolactose) and tryptophan both bind to repressor proteins as part of regulation of the lac and trp operons, respectively. Outline two differences between the behavior of these compounds and their associated repressor proteins, and describe their effect on the transcription of their associated operons. Why do these differences make physiological sense?
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Q3: What two kinds of regulation exist for
Q4: Allolactose binding to the I gene product
Q5: Which base pair has a potential H-bond
Q6: E. coli cells are placed in
Q7: Which statement is NOT true regarding the
Q9: What is the role of FljA in
Q10: Which mechanism is NOT a way that
Q11: Attenuation in the trp operon of E.
Q12: Match each of the operons with the
Q13: DNA-binding transactivating proteins often possess a domain