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: Medicine
[{'content': "The following are autosomal dominant disorders except \nSelect and explain. \nA. Mytonic dystrophy, B. Von Willebrand disease, C. Haemochromatosis, D. Marfan's syndrome", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Iron overload indicates accumulation of iron in the body from any cause. The most impoant causes are hereditary haemochromatosis (HHC), a genetic disorder, and transfusional iron overload, which can result from repeated blood transfusions Ref Robbins 9 /e pg 170', 'role': 'assistant'}]