Well, basically DNA polymerase acts as a catalyst. It catalyzes the formation of our phosphol digester bonds. So it takes the nucleotides that are found in the environment so these are free nucleotides and attaches these nucleotides together via phosphol diaster bonds or phosphol diaster linkages. 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.