Judged: two independent readers; copy check clear.
fragile X syndrome
fragile X syndrome Fragile X syndrome is a genetic condition caused by a mutation near the end of the long arm of the X chromosome, involving the FRAXA or FRAXE gene region.
Fragile X syndrome is a genetic condition caused by a mutation near the end of the long arm of the X chromosome, involving the FRAXA or FRAXE gene region. It is associated with cognitive impairment, language delay, hyperactivity, seizures, and enlargement of the ears, head, and testes, with intellectual disability being common in males and also affecting about half of females with the full FRAXA mutation.