This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
[{'content': 'Paternal 15 chromosome deletion is seen in ? \nSelect and explain. \nA. Angelman syndrome, B. Prader Willi syndrome, C. Down syndrome, D. Turner syndrome', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Prader Willi syndrome Paternal 15 deletion - Prader Willi syndrome. Maternal 15 deletion - Angelman syndrome. Prader Willi syndro-me Angleman syndrome Paternal deletion (Paternal genomic imprinting) Maternal uniparental disomy Maternal deletion (maternal genomic imprinting) Paternal uniparental disomy", 'role': 'assistant'}]