2 doctors weighed in:
Whats the cause of fragile x syndrome?
2 doctors weighed in

1 doctor agrees
In brief: Genetic
Fragile x is caused by just one defective gene.
This gene also known as fmr1, shuts it self down and fails to produce a protein. The incidence is 1 in 4000 males and 1 in 6-8000 females have it is the most common cause of inherited mental disability-.

In brief: Genetic
Fragile x is caused by just one defective gene.
This gene also known as fmr1, shuts it self down and fails to produce a protein. The incidence is 1 in 4000 males and 1 in 6-8000 females have it is the most common cause of inherited mental disability-.
Dr. Josephine Ruiz-Healy
Dr. Josephine Ruiz-Healy
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