Is fragile x syndrome the same degree of retardation as down syndrome?

Variable. They are both "genetic" conditions but they are different in the spectrum of issues they present-. People with fragile x may have subtle cognitive impairments all depending on how affected the fmr1 gene is. People with downs have an extra chromosome and kids have delayed cognition as well as physical growth and frequently heart problems.. They both may exhibit autistic traits, more so fagile x.