Which of the Following Statements About DNA Repair Is TRUE

question 51

Multiple Choice

Which of the following statements about DNA repair is TRUE?

• A) All of the mistakes made in DNA replication are fixed by the proofreading activity of DNA polymerase.
• B) There is only one DNA repair system in humans.
• C) All mutations are detected and fixed by DNA repair systems.
• D) DNA repair systems recognize distortions in the DNA double helix.
• E) There is no DNA repair system to deal with damage caused by exposure to ultraviolet light.

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Definitions:

Orthopnea

Difficulty in breathing that is relieved by sitting or standing in an upright position, commonly associated with heart and lung diseases.

Orth/o

A prefix meaning straight, correct, or right, used in medical and technical terms.

Pleurisy

An inflammation of the pleura, the membrane surrounding the lungs, which can cause sharp chest pain with breathing.

Pleurodynia

A condition characterized by a sudden and severe pain in the muscles between the ribs or in the diaphragm, often caused by infections.