Practice question
Question
Following are a few statements made regarding the lac operon. A. The LacZ, LacY and LacA are encoded by a single transcript. B. The three proteins are translated as a single precursor and then processed. C. In the presence of glucose, lactose can upregulate the operon. D. lsopropyl thio β-D-galactoside (IPTG) is a gratuitous inducer. Which one of the following options represents the combination of all correct statements?
Explanation
Analysis of following are a few statements made regarding shows A and D only represents established outcome. functional assays supports option D, whereas distractors confuse substrate or regulatory direction and fail to reproduce observed results.
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