This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
One of the following disorders is due to maternal disomy 
Select and explain. 
A. Prader Willi syndrome, B. Angelman syndrome, C. Hydatidi form mole, D. Klinefelter syndrome
A: Prader Willi syndrome
Answer: A: Prader Willi syndrome 
Explanation: ref Robbins 9/e p173 Matetnal disomy is associated with disorders like prader Willi syndrome, angelman syndrome.