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.

---

Definitions:

Pilot Study

A small-scale preliminary study conducted to evaluate feasibility, time, cost, risk, and adverse events before proceeding to a full-scale research project.

Survey Validity

Refers to the degree to which a survey measures what it is intended to measure.

Independent Variable

The factor that is predicted to cause change.

Marriage Counseling

A form of therapy that addresses marital problems and conflicts by helping spouses improve communication and resolve issues.