Fragile X syndrome is a genetic disorder caused by an alteration in the X chromosome (that is, a change in the DNA structure). It results in a wide range of developmental, physical and behavioural problems, and is the most common known cause of inherited intellectual disability. Prevalence estimates for fragile X syndrome vary – the best estimate is that about one in 4,000 males has this syndrome.
Effects of fragile X syndromeThe most significant effects of fragile X syndrome are:
- developmental delay
- intellectual disability
- behavioural problems
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