Aaron is seven years old, is larger than average for his age, and has a long, thin face and big ears. He has an intellectual disability, is hyperactive, and has a peculiar tendency to avoid eye contact with others. Aaron most likely has
A)Down syndrome.
B)fragile X syndrome.
C)phenylketonuria (PKU).
D)cretinism.

Question

Quizplus · Accepted Answer

Aaron's symptoms, including a long, thin face, big ears, intellectual disability, hyperactivity, and avoidance of eye contact, are characteristic of fragile X syndrome, a genetic condition that causes a range of developmental problems.

Aaron Is Seven Years Old, Is Larger Than Average for His