system
Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
user
On the ribosome, mRNA binds
assistant
The correct answer is  During initiation, the small ribosomal subunit binds to the start of the mRNA sequence.
Then a transfer RNA (tRNA) molecule carrying the amino acid methionine binds to what is called the start codon of the mRNA sequence.