Test Details: Freidreichs Ataxia is an autosomal recessive neurodegenerative disorder associated with an unstable expansion of GAA trinucleotide repeats in the first intron of the frataxin gene on chromosome 9q13. Typical onset of the disease is between 10-25 years. Symptoms include depressed tendon reflexes, speech disturbance, muscle weakness and visual disturbance. This assay determines the accurate size of the triplet repeats.