Protein Synthesis Drawing Hydrogen bonds between the complementary mRNA bases and DNA bases are made. tRNA molecules bring the correct amino acids to the ribosome by bonding their anticodons to the complementary mRNA codons. More tRNA molecules transfer correct amino acids to the growing protein chain (by matching the anticodon on tRNA to the codons on mRNA). Remember: One tRNA only carries one kind of A.A. Still more tRNA molecules transfer correct amino acids to the growing protein chain until the instructions (written in the mRNA) have been followed completely. Once one final protein is made, the ribosome will begin making another protein from the same instructions until the cell signals the ribosome to stop making these proteins. This protein can now go perform it’s function within the cell.