We also have the SSB proteins that bind to the individual strands thereby stabilizing them which keeps them apart and keeps them from reforming that double helix. And as time progresses our DNA polymerase shown in red basically moves along our parent strand and synthesizes our daughter strand one nucleotide at a time. Now, two important things that we have to remember about DNA replication is the following two concepts. So firstly DNA replication is a semiconservative process which means that once we form our new DNA one of the single stranded DNA molecules is the new synthesized one and the other one comes from our original DNA molecule that we used as a template. So for example, if we have a single DNA molecule and it undergoes DNA replication we essentially form two DNA molecules and each one of those two DNA molecules contains one new synthesized strand and one original parent strand that came from the original DNA molecule. And this is what we mean by a semiconservative process.