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': 'On the ribosome, mRNA binds \nSelect and explain. \nA. between the subunits, B. to the large subunit, C. to the small subunit, D. none of these', 'role': 'user'}, {'content': 'Answer: C \nExplanation: During initiation, the small ribosomal subunit binds to the start of the mRNA sequence.\nThen a transfer RNA (tRNA) molecule carrying the amino acid methionine binds to what is called the start codon of the mRNA sequence.', 'role': 'assistant'}]