Which hereditary cause of intellectual disability affects male children at a rate of about 1 out of every 5000 males with up to three-fourths of individuals with this disorder having hyperactivity and attention disorders?
A)hydrocephaly
B)cretinism
C)phenylketonuria (PKU)
D)fragile X syndrome

Question

Quizplus · Accepted Answer

Fragile X syndrome is a genetic disorder that causes intellectual disability, behavioral and learning challenges, and is the most common inherited cause of intellectual disability. It affects males more severely than females due to its inheritance pattern related to the X chromosome. Hyperactivity and attention disorders are common in individuals with fragile X syndrome.

Which Hereditary Cause of Intellectual Disability Affects Male Children at a Rate