Harry is an autistic child and has a short attention span for any task. His intellectual abilities are much lower than other children his age. His pediatrician reveals that Harry has a genetic disorder due to an abnormality in his X chromosome, which has become constricted. Harry most likely suffers from
A) Turner syndrome.
B) Fragile X syndrome.
C) XYY syndrome.
D) Klinefelter syndrome.

Question

Quizplus · Accepted Answer

Fragile X syndrome is a genetic disorder that occurs due to an abnormality in the X chromosome. It is the most common form of inherited intellectual disability and is more common in males than females. People with fragile X syndrome often exhibit symptoms such as developmental delays, learning difficulties, and attention deficit hyperactivity disorder (ADHD). These symptoms are similar to those exhibited by Harry, who also has a short attention span and lower intellectual abilities. Therefore, B) Fragile X syndrome is the best choice for Harry's condition.

Harry Is an Autistic Child and Has a Short Attention