A mutant strain of bacteria cannot utilize lactose even if it is incubated in a high concentration of the sugar, but it can metabolize lactose if the sugar is injected into its cells.Most likely, this strain of bacteria is defective in the _______ gene.

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The Answer of A mutant strain of bacteria cannot utilize lactose even if it is incubated in a high concentration of the sugar, but it can metabolize lactose if the sugar is injected into its cells.Most likely, this strain of bacteria is defective in the _______ gene.

A Mutant Strain of Bacteria Cannot Utilize Lactose Even If