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InterviewSolution
| 1. |
E. coli cell with a mutated Z gene of the lac operon cannot grow in medium containing only lactose as the source of energy because:A. In the presence of glucose, E. coli cells do not utilise lactoseB. They cannot transport lactose from the medium into the cellC. The lac operon is constitutively active in these cellsD. They cannot synthesis functional `Beta`-galactosidase |
| Answer» Correct Answer - D | |