Fragile X founder effect and distribution of CGG repeats among the mentally retarded population of Andalusia, South Spain
Fragile X syndrome is the most common inherited ORG CHLORELLA form of mental retardation.We investigated the prevalence of the Fragile X syndrome in the population with mental retardation of unknown etiology in Andalusia, South Spain.We analyzed 322 unrelated patients (280 males and 42 females), and found a fragile X syndrome frequency of 6.5%.Amon