The process by which the cells of our body replicate DNA molecules is very complicated. In fact, it involves over 20 different types of proteins and enzymes that work together and coordinate the synthesis of that replicated DNA molecule. Now, in 158, an individual by the name of Arthur Kornberg and his team essentially isolated and studied especially specific type of protein involved in the replication process of E. Coli cells. And this protein became known as DNA polymerase. In fact, inside our body, we also use DNA polymerase to synthesize replicated DNA molecules. So in this lecture, what we're going to discuss is how the DNA polymerase actually works.