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Another mutation is found (Mutation C) that leads to constitutive expression of the lac operon. To your surprise, Mutation C genetically maps within the first structural gene of the operon, the z gene coding for beta-galactosidase. Nevertheless, the beta-galactosidase synthesized in this mutant is full length and exhibits normal activity. Suggest an explanation for the constitutive phenotype of Mutation
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Another mutation is found (Mutation C) that leads to constitutive expression of the lac operon. To y...
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