This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetics, Subject name: Pathology
Trinucleotide repeat causes all except: 
Select and explain. 
A. Hereditary motor sensory neuropathy, B. Frederich ataxia, C. Spinocerebellar ataxia, D. Huntington disease
A: Hereditary motor sensory neuropathy
Answer: A: Hereditary motor sensory neuropathy 
Explanation: Ans: a (Hereditary motor sensory neuropathy) Ref: Ganong, 22nd ed,p. 215Some examples of trinucleotide repeat diseases:Huntington's disease -- CAGFragile X syndrome-- CGGSpinocerebellar ataxia '-- CAGMyotonic dystrophy-- CTG(Type 1,2,3,63)Frederich's ataxia-- GAA