This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Glycine Metabolism Detail, Subject name: Biochemistry
[{'content': 'Glycine is used in the synthesis of all EXCEPT- \nSelect and explain. \nA. Purines, B. Creatine, C. Heme, D. Pyrimidines', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Glycine as Precursor of Many Compounds WITH REGARD TO OTHER OPTIONS For pyrimidines, two amino acids are required i.e. Aspaate and Glutamine.', 'role': 'assistant'}]