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QUESTION

a) Discuss the control of expression of the tryptophan (trp) operon in the presence and absence of tryptophan. DO NOT discuss transcriptional attenuation. (4 marks) b) Why might the control of the tr

a) Discuss the control of expression of the tryptophan (trp) operon in the presence and absence of tryptophan. DO NOT discuss transcriptional attenuation. (4 marks) 

b) Why might the control of the trp operon include transcriptional attenuation whereas the control of the lac operon does not? List one reason. For full marks, you must explain your reason. (2 marks)

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