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colleen colleen
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13 years ago
A bacteria has the following lac operon genes located on the chromosome: I+P-Z-Y-A+. On a plasmid, this same bacterial cell has the lac genes I-P+Z-Y+A-. Which Lac proteins will be made? What type of protein expression (induced or constituitive) will there be for each protein that is made ? 
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13 years ago
Because LacI will be made, whatever products are made will be induced by lactose. Because the plasmid has the only genes associated with a functional promotor, then the cell makes only LacY. 
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