This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Genetic Disorders, Subject name: Biochemistry
[{'content': "Which of the following trinucleotide repeat disorder and the repeat is wrongly paired? \nSelect and explain. \nA. Kennedy disease - CAG, B. Friedreich's Ataxia - CGG, C. Myotonic dystrophy - CTG, D. Huntington's chorea - CAG", 'role': 'user'}, {'content': "Answer: B \nExplanation: Disease Repeat Fragile X syndrome CGG Friedreich's Ataxia GAA Myotonic dystrophy CTG Spinobulbar muscular atrophy (Kennedy disease), Spinocerebellar ataxia, Huntington's disease CAG", 'role': 'assistant'}]