A deletion mutation in the leader sequence of the trp operon removes the two tryptophan codons that are involved in attenuation. Predict the effect of this mutation on the expression of the trpstructural genes in E. coli cells grown in media that lacks tryptophan. (a) The trp structural genes will be expressed in order to synthesize tryptophan. (b) The trp structural genes will have decreased expression because the mRNA will adopt the terminator configuration. (c) The repressor protein R will be bound to the operator locus O.
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Home » Biology » A deletion mutation in the leader sequence of the trp operon removes the two tryptophan codons that are involved in attenuation. Predict the effect of this mutation on the expression of the trpstructural genes in E.