So basically the DNA polymerase bind to the primer region and adds individual nucleotides one by one extending our synthesized strand known as the daughter strand. So basically the single stranded DNA molecule that is being synthesized is known as the daughter strand. But the actual original DNA single stranded molecule that is used as a template to synthesize the new molecule is known as the parent strand. So let's take a look at the following diagram. So we have our double helix DNA that basically unwinds in this location as soon as the helicase protein as well as the other proteins bind to the origin of replication. So we can imagine the group of proteins that includes our helicase binds to our origin replication that unzips or unwinds our DNA double strands to expose these two single stranded molecules that are known as the parent strands.