1. This is called a replication fork.
DNA Replication
In order to replicate, the DNA strand must unzip.
This is called a replication fork.

2. A always bonds with T C always bonds with G
DNA Replication
Free floating nucleotides will then bond with the exposed bases.
A always bonds with T C always bonds with G

3. The nucleotides then bond together.
DNA Replication
The nucleotides then bond together.

4. The result is two strands of DNA. Both identical to the original.
DNA Replication
The result is two strands of DNA.
Both identical to the original.