Models of DNA replication

Model for replication of circular double helical DNA, based on formation of double forks due to bidirectional DNA replication
Fig. 26.30. Model for replication of circular double helical DNA, based on formation of double forks due to bidirectional DNA replication.
Replication fork model
The most extensively utilized mechanism of DNA replication involves formation of replication forks, moving in one direction in unidirectional replication and in both directions in bidirectional replication. This method can apply to both linear as well as circular DNA molecules. Replication of circular double helical DNA through formation of replication forks moving in both directions (bidirectional replication) is shown is Figure 26.30.
Model for replication of circular double helical DNA, based on formation of double forks due to bidirectional DNA replication
Fig. 26.30. Model for replication of circular double helical DNA, based on formation of double forks due to bidirectional DNA replication.