This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Metabolism of nucleic acids, Subject name: Biochemistry
[{'content': 'Which of the following is not an enzyme of Urea biosynthesis? \nSelect and explain. \nA. Carbomoyl phosphate synthetase II, B. Ornithine transcarbamylase, C. Argininosuccinase, D. Arginase', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Carbamoyl Phosphate Synthase I Is the Pacemaker Enzyme of the Urea Cycle. Other enzymes are; Argininosuccinate Synthase. Argininosuccinate Lyase. Arginase.Ref: Harpers Illustrated Biochemistry, 30th edition, page no: 295', 'role': 'assistant'}]