In Bacteria,a Particular Gene Codes for a Protein That Helps

question 13

Multiple Choice

In bacteria,a particular gene codes for a protein that helps the bacteria break down and use lactose as a food source.If no lactose is present,

• A)the gene will be broken down so no enzyme is made.
• B)the gene will mutate to produce another,more useful,enzyme.
• C)the promoter for this gene will be blocked so RNA polymerase can't bind.
• D)the promoter for this gene will be enhanced so RNA polymerase binds more readily.

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