One Hereditary Disease in Humans, Called Xeroderma Pigmentosum (XP), Makes

Multiple Choice

One hereditary disease in humans, called xeroderma pigmentosum (XP) , makes homozygous individuals exceptionally susceptible to UV-induced mutation damage in the cells of exposed tissue, especially skin. Without extraordinary avoidance of sunlight exposure, patients soon succumb to numerous skin cancers.
-Which of the following best describes this phenomenon?

A) inherited cancer taking a few years to be expressed
B) embryonic or fetal cancer
C) inherited predisposition to mutation
D) inherited inability to repair UV-induced mutation
E) susceptibility to chemical carcinogens