The next drawing illustrates the final step in the execution of the DNA program code. This final step is the formation of protein molecules. The majority of these protein molecules are enzymes. Enzyme are responsible for all the complex chemical reaction that are collective known as metabolism. METABOLISM = LIFE.

It illustrates a mRNA molecule moving throug a ribosome. As is moves through the ribosome tRNA that carries a specific protein attach itself to the mRNA. Note that the sequence of attachment is determined by the original DNA code. As the molecules pass through the ribosome , a protein molecule is formed. The sequwnce of the aminoacids in this protein molecule is determined by theRNA code. tRNA H picks up amino acid H etc.