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To Date, Several Lactose Metabolism Mutants Have Been Found in Escherichia

Question 24

Multiple Choice

To date, several lactose metabolism mutants have been found in Escherichia coli. One of these mutants has a phenotype in which the cell cannot accumulate lactose because no lactose permease protein is present. What genotype would be associated with this mutation?


A) lacI-
B) lacZ-
C) lacY-

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