Fragile X intermediate alleles: do they impact the reproductive risk?
Summary Fragile X syndrome is an inherited disorder caused by a CGG repeat expansion in the FMR1 gene. The syndrome is characterized by mild-to-severe mental retardation, which may be associated with behavioural disturbances and typical physical signs. As being X-linked, the syndrome shows its typical manifestations in males, although some females may be mildly symptomatic. The syndrome is