Elongation of DNA replication involves adding nucleotides to the DNA towards the direction of the replication fork. This is done by DNA polymerase.

University of Wisconsin - Madison

The steps of DNA replication are shared between eukaryotes and prokaryotes. The steps of DNA replication are: 
1. Initiation
2. Elongation
3. Termination

The Steps of DNA Replication

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DNA replication in bacteria occurs rapidly at approximately 1000 nucleotides per second, which is approximately ten times the speed of eukaryotes. It also occurs at a single origin to begin replication.

DNA Replication in Prokaryotes

Initiation of DNA replication involves many proteins to interact with the DNA to make it accessible to be replicated. In prokaryotes, there is one DNA sequence where initiation can begin but in eukaryotes there are many.

Initiation of DNA Replication

Elongation of DNA Replication

The end of DNA replication must involve sealing of the DNA at the replication fork to make double stranded replicated DNA.

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