What step could you add after you transcribe the dna to make a more complete model of protein synthesis

The correct answer is- Translation of mRNA (messenger RNA) to form proteins.

Translation is a process of formation of polypeptide (protein) using mRNA transcript. It occurs in the cytoplasm of the cell at the site called ribosome.

It requires a tRNA molecules that brings appropriate amino acids according to the codon (sequence of three nucleotides) present in the mRNA. The amino acids (building blocks of protein) are linked together with the help of peptide bond.

Thus, translation is a step that must be added to make a more complete model of protein synthesis.