This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: vitamins, Subject name: Biochemistry
[{'content': 'Which aminoacid does not take pa in one carbon transfer reactions? \nSelect and explain. \nA. Alanine, B. Histidine, C. Glycine, D. Serine', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Reference: Harpers illustrated biochemistry 30th edition', 'role': 'assistant'}]