Levi has a fatal disease that causes the central nervous system to deteriorate, leading to significant declines in muscle coordination and cognition. He was unaware that he had the disease until his late-30s because he did not experience any symptoms in childhood, adolescence, or young adulthood. Levi has ______.
A) cystic fibrosis
B) Marfan syndrome
C) Huntington's disease
D) PKU

Question

Quizplus · Accepted Answer

Huntington's disease is a fatal genetic disorder that typically begins in adulthood and causes a gradual decline in cognitive and motor functioning. Its symptoms do not typically appear until after the age of 30, as is the case with Levi. Cystic fibrosis and PKU are both genetic disorders, but they do not cause the symptoms described in the passage. Marfan syndrome is a genetic disorder that affects connective tissue and typically causes physical abnormalities, such as long limbs and curved spines, but does not affect cognitive or neurological functioning.

Levi Has a Fatal Disease That Causes the Central Nervous