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': 'Which of the following amino acid is required for the synthesis of haem? \nSelect and explain. \nA. Lysine, B. Glycine, C. Arginine, D. Glutamine', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Glycine is the starting amino acid for porphyrin synthesis.', 'role': 'assistant'}]