12.1 Introduction 12.2 Replicons can be linear or circular 12.3 Origins can be mapped by autoradiography and electrophoresis 12. 4 The bacterial genome is a single circular replicon 12.5 Each eukaryotic chromosome contains many replicons 12.6 Isolating the origins of yeast replicons 12.7 D loops maintain mitochondrial origins 2.8 The problem of linear replicons 12.9 Rolling circles produce multimers of a replicon 12. 10 Rolling circles are used to replicate phage genomes 12. 11 The f plasmid is transferred by conjugation between bacteria 2. 12 Conjugation transfers single-stranded dNA 12. 13 Connecting bacterial replication to the cell cycle 12 14 Cell division and chromosome segregation 2. 15 The division apparatus consists of cytoskeletal and regulatory components 2. 16 Partitioning involves membrane attachment and(possibly )a motor 12. 17 Multiple systems ensure plasmid survival in bacterial populations 12. 18 Plasmid incompatibility is determined by the replicon 12 19 The ColE l compatibility system is controlled by an RNA regulator 消当12.1 Introduction 12.2 Replicons can be linear or circular 12.3 Origins can be mapped by autoradiography and electrophoresis 12.4 The bacterial genome is a single circular replicon 12.5 Each eukaryotic chromosome contains many replicons 12.6 Isolating the origins of yeast replicons 12.7 D loops maintain mitochondrial origins 12.8 The problem of linear replicons 12.9 Rolling circles produce multimers of a replicon 12.10 Rolling circles are used to replicate phage genomes 12.11 The F plasmid is transferred by conjugation between bacteria 12.12 Conjugation transfers single-stranded DNA 12.13 Connecting bacterial replication to the cell cycle 12.14 Cell division and chromosome segregation 12.15 The division apparatus consists of cytoskeletal and regulatory components 12.16 Partitioning involves membrane attachment and (possibly) a motor 12.17 Multiple systems ensure plasmid survival in bacterial populations 12.18 Plasmid incompatibility is determined by the replicon 12.19 The ColE1 compatibility system is controlled by an RNA regulator