Which of the following is the most common cause of severe intellectual disability (ID)in girls?
A) Angelman syndrome
B) Rett syndrome
C) fetal alcohol syndrome
D) Down syndrome

Question

Quizplus · Accepted Answer

Rett syndrome is the most common cause of severe ID in girls. It is a genetic disorder that affects brain development and usually affects girls more severely than boys. Angelman syndrome and Down syndrome can cause intellectual disability, but they are not more common in girls specifically. Fetal alcohol syndrome can also cause intellectual disability, but it is not the most common cause.

Which of the Following Is the Most Common Cause of Severe