Multiple Choice
Xeroderma pigmentosum is a human genetic disease caused by
A) elevated levels of cholesterol in the blood.
B) failure to produce pigment that protects the skin cells from UV light exposure.
C) defective DNA excision-repair mechanisms.
D) mutations that inactivate tumor suppressor genes.
E) loss of genes controlling the SOS response.
Correct Answer:

Verified
Correct Answer:
Verified
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