So we see that to keep the two single strands apart during DNA replication, another type of enzyme known as the single stranded binding protein has to bind to these individual exposed regions of the single strands of DNA. So these single stranded binding proteins, also known as SSB proteins, are shown in purple on this molecule. And when they bind, they basically keep these two single strands of DNA from reassociating with one another, from reforming the hydrogen bonds. Now, once we initiate the process of DNA replication, how exactly do we actually synthesize those new data strands? So basically we use a protein known as DNA polymerase. What DNA polymerase does is it takes the free nucleotides that are found in the environment and it attaches these nucleotides by using phosphodia ester bonds.