In the process. Every time we form a phosphodia linkage by using the DNA polymerase we release a pyrophosphate into the environment and this basically drives the process of DNA replication. Now DNA polymerase can only read the parent strand in the three to five direction and this implies that it can only synthesize the new daughter DNA molecule in the five to three direction. So to see what we mean, let's take a look at the following diagram. So we have the DNA helicase that binds at the origin of replication. Eventually it moves a certain distance and it ends up at the location known as the fork of replication.