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(Solved by Expert Tutors) Attenuation is an additional mechanism that regulates transcription


of the Trp Operon in bacteria. Which of the following statements is incorrect?a. The mechanism of attenuation relies on the fact that in bacteria transcription and translation of mRNA are occurring simultaneously (i.e. they are ?coupled?).b. In a tryptophan-deficient cell, the ribosome would be expected to stall over region 1 in the leader sequence of the polycistronic RNA.c. In a tryptophan-deficient cell, a stem loop will form between regions 2 and 3 enabling transcription to proceed.d. In a tryptophan-rich cell, the ribosome will progress to region 2 enabling formation of the intrinsic terminator between regions 3 and 4. e. In order for intrinsic termination to take place a stem loop must be followed by a sequence of ten guanine (G) nucleotides.

 


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