<Li> High - or low - copy number . </Li> <P> There are also significant differences between prokaryotic and eukaryotic origins of replication: </P> <Ul> <Li> Most bacteria have a single circular molecule of DNA, and typically only a single origin of replication per circular chromosome . </Li> <Li> Most archaea have a single circular molecule of DNA, and several origins of replication along this circular chromosome . </Li> <Li> Eukaryotes often have multiple origins of replication on each linear chromosome that initiate at different times (replication timing), with up to 100,000 present in a single human cell . Having many origins of replication helps to speed the duplication of their (usually) much larger store of genetic material . The segment of DNA that is copied starting from each unique replication origin is called a replicon . </Li> </Ul> <Li> Most bacteria have a single circular molecule of DNA, and typically only a single origin of replication per circular chromosome . </Li>

How many origins of replication are typically found on a bacterial chromosome