Describe how a protein molecule is produced from mRNA

Translation is the conversion of the messenger RNA (mRNA) code into a protein. Cytoplasmic mRNA is bound by ribosomes (which are present in the cytoplasm or rough endoplasmic reticulum). Transfer RNA (tRNA) pick up specific amino acids from the cytoplasm and bring them to the mRNA-loaded ribosome. A tRNA molecule can enter the ribosome if its anti-codon (tRNA triplet of bases) can base pair via specific, complementary hydrogen bonding to an accessible codon (mRNA triplet of bases). The ribosome has adjacent sites for two tRNA molecules to enter. The amino acids on the tRNA molecules are close together so a condensation reaction occurs forming a peptide bond. The ribosome moves to the next codon, releasing one tRNA molecule so there is space for a new tRNA molecule with an amino acid bound to enter the ribosome. This process repeats until a stop codon is reached. The polypeptide is released from the ribosome and folds into a protein.