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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
Fredrich's ataxia is caused by -
assistant
The correct answer is  Ans. is 'b' i.e., Expanded trinucleotide repeat o Freidrich ataxia is an autosomal recessive disorder.o It is caused by loss of Junctional mutation in frataxin gene (FxN) gene.o Frataxin gene is located on chromosome 9ql3.o Majority of patients have an expanded trinucleotide repeat in intron 1 of both alleles of frataxin gene.