If Escherichia Coli Is Cultured in Broth Containing Both Glucose

question 31

Multiple Choice

If Escherichia coli is cultured in broth containing both glucose and lactose,it

• A)uses glucose preferentially until the supply is exhausted,then uses lactose.
• B)uses lactose preferentially until the supply is exhausted,then uses glucose.
• C)uses glucose and lactose simultaneously.
• D)uses only the glucose (it cannot use lactose as a source of carbon).

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