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': 'Chian initiation in protein synthesis is by \nSelect and explain. \nA. AUG, B. GLA, C. UGA, D. UAG', 'role': 'user'}, {'content': 'Answer: A \nExplanation: INITIATOR CODON : AUG is the initiator codon. It also acts as the codon for methionine. In a few proteins, GUG acts as initiator codon. REF :DM VASUDEVAN TEXTBOOK ; 8th EDITION ;Page no :586.', 'role': 'assistant'}]