Relief Digest



 

What is Fragile X

Fragile X is the most common inherited form of mental retardation. Fragile X results from a change, or mutation, in a single gene, which can be passed from one generation to the next. Fragile X appears in families of every ethnic group and income level.

Symptoms of Fragile X occur because the mutated gene cannot produce enough of a protein that is needed by the body’s cells, especially cells in the brain, to develop and function normally. The amount and usability of this protein, in part, determine how severe the effects of Fragile X are.

Reference for Fragile X Article

National Institutes of Health

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