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: Biochemistry
OTC deficiency causes 
Select and explain. 
A. Citrullinemia, B. Argininemia, C. Hyperammonemia type-1, D. Hyperammonemia type-2
D: Hyperammonemia type-2
Answer: D: Hyperammonemia type-2 
Explanation: Ans. is 'd' i.e., Hyperammonemia type-2Orinithine transcarbomylase (OTC) deficiency causes hyperammonemia type-2.