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If a strain of bacteria had a mutation that blocked expression of the lac repressor, what would you expect as a result?

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When the expression of lac repressor is blocked, the transcription of the lac operon will continue without any control. The lac repressor is a protein that inhibits the transcription of the lac operon. When the lac repressor is inhibited due to mutation, the transcription of the lac operon will continue unhindered. 
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