This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Angelman syndrome is due to - \nSelect and explain. \nA. Digenic inheritence, B. Inversion, C. Uniparental disomy, D. Mitochondrial disorder', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Robbins basic pathology 9th edition page no 244 Angelman syndrome, as might be expected, can result from uniparental disomy of parental chromosome 15.', 'role': 'assistant'}]