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A mutant strain of $E .$ coli produces $\beta$ -galactosidase in both the presence and the absence of lactose. Where in the operon might the mutation in this strain occur?
Step 1
This means that the repressor binds to the operator region of the operon, preventing transcription of the genes downstream, including the gene for $\beta$-galactosidase. Show more…
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A mutant strain of $E .$ coli produces $\beta$ -galactosidase in both the presence and the absence of lactose. Where in the operon might the mutation in this strain be located?
A mutant strain of E. coli produces β-galactosidase in both the presence and the absence of lactose. Where in the operon might the mutation in this strain be located?
A mutant strain of E. coli produces beta-galactosidase in the presence and in the absence of lactose. Where in the operon might the mutation in this strain occur and why? in the lacI gene, which leads to an inactive lac repressor in the promoter region of the operon, where the mutation leads to the failure of the RNA polymerase to bind to the promoter in the operator region, where the mutation leads to the failure of the operator to normally bind the repressor near the lacI gene, where the mutation leads to increased levels of lac repressor being made in the operator region, which leads to increased binding of the lac repressor to the operator
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