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
Paternal 15 chromosome deletion is seen in 
Select and explain. 
A. Angelman syndrome, B. Prader willi syndrome, C. Down syndrome, D. Tarner syndrome
B: Prader willi syndrome
Answer: B: Prader willi syndrome 
Explanation: None