There Is a Mutation in the Operator of the Trp

question 69

Multiple Choice

There is a mutation in the operator of the trp operon in a cell such that the trp repressor is unable to bind to the operator. If tryptophan is added to the cell, what will happen?

• A) Tryptophan will bind to the repressor, and trp enzymes will be produced.
• B) Tryptophan will bind to the repressor, and trp enzymes will not be produced.
• C) Tryptophan will not bind to the repressor, and trp enzymes will be produced.
• D) Tryptophan will bind to the operator, and trp enzymes will be produced.

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