____ is the most common cause of inherited intellectual disability.
A) Down syndrome
B) Fragile-X syndrome
C) Prader-Willi syndrome
D) Phenylketonuria

Question

Quizplus · Accepted Answer

Fragile-X syndrome is the most common cause of inherited intellectual disability. It is caused by a mutation in the FMR1 gene on the X chromosome and can affect both males and females. Symptoms include developmental delays, learning disabilities, and behavioral issues. Down syndrome, Prader-Willi syndrome, and phenylketonuria can also cause intellectual disability, but they are not primarily inherited conditions.

____ Is the Most Common Cause of Inherited Intellectual Disability