Answer:
Translation begins when an mRNA connects to the small subunit of a ribosome.
Step-by-step explanation:
Connected to the tRNA of the start codon is an amino acid, called f-Met. Once the f-Met tRNA binds to the small subunit of the ribosome, the large subunit of the ribosome binds to the small unit, and translation is ready to begin. Therefore, translation begins when an mRNA connects to the small subunit of a ribosome.