_____ is the most common hereditary cause of mental retardation.

Question

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Fragile X syndrome is a genetic condition caused by a mutation in the FMR1 gene on the X chromosome. It is the most common known cause of inherited intellectual disability, affecting approximately 1 in 4,000 males and 1 in 8,000 females. Turner syndrome, Klinefelter syndrome, and Down syndrome can also cause intellectual disability but are not typically inherited in the same way as Fragile X syndrome.

_____ Is the Most Common Hereditary Cause of Mental Retardation