Which of the following genetic disorders affects only males?
A)Phenylketonuria
B)Sickle-cell anemia
C)Klinefelter syndrome
D)Down syndrome

Question

Quizplus · Accepted Answer

Klinefelter syndrome is a genetic disorder that affects males only. It is caused by the presence of an extra X chromosome, resulting in XXY instead of the typical male XY chromosome complement. Phenylketonuria, sickle-cell anemia, and Down syndrome can affect both males and females.

Which of the Following Genetic Disorders Affects Only Males