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
[{'content': 'Aminoacyl t-RN A is required for all except : \nSelect and explain. \nA. Hydroxyproline, B. Methionine, C. Cystine, D. Lysine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: A i.e. Hydroxyproline', 'role': 'assistant'}]