Fragile X syndrome (FXS) is an inherited genetic condition that causes mental retardation, intellectual disability, and autism. Etiology of the disease includes the defect in the FMR1 gene located on the X-chromosome, which prevents the gene from properly synthesising a protein called the fragile X mental retardation 1 protein. Lack of this protein causes symptoms characteristic of FXS, although the exact function of this protein is not fully known.
FXS is more common in males, and usually, have more severe symptoms than in females. Studies suggest that the condition affects 1 in 4,000 males, whereas in females, it affects about 1 in every 8,000. The prevalence of...
