A strain of Escherichia coli produces a temperature-sensitive tryptophan synthase and therefore requires exogenously sup

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answerhappygod
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A strain of Escherichia coli produces a temperature-sensitive tryptophan synthase and therefore requires exogenously sup

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A strain of Escherichia coli produces a temperature-sensitive tryptophan synthase and therefore requires exogenously supplied tryptophan for growth at 42°C but not at 30°C. Which of the following mutations is most likely responsible for this phenotype?


A) Deletion
B) Frameshift
C) Insertion
D) Missense
E) Nonsense
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