And likewise, another DNA polymerase attaches onto this side and moves in this direction, synthesizing the complementary strand to this DNA strand here. And so after one cycle of PCR, we have two copies of that DNA molecule. Now, the great thing about PCR is we don't have to do anything else to repeat the cycle. All we have to do is simply change the temperature back to 95 degrees Celsius. So once we complete cycle one, we're essentially in this stage. And the next step is if we want to repeat the cycle again, we increase the temperature back to 95 degrees Celsius.