1. A ribosomal unit attaches to the mRNA at the start codon
2. tRNA carrying the first amino acid enters the ribosome (at the P site) and it's anticodon base pairs are matched the the codon on the mRNA
3. The ribosome moves along the mRNA and another tRNA enters the A site. The amino acid at the top of the tRNA is attached to the previous one with a peptide bond
4. As the ribosome moves along, another tRNA enters and the first tRNA is now in the E site. Pairs are based and amino acids attach
5. The first tRNA is released from the ribosome as another one enters, but the amino acids are attached. As this process continues, a polypeptide chain (protein!) is created.
- 6. Once the ribosome reaches the stop codon, the polypeptide chain is released. The ribosome detaches and the last tRNA is released