Bacterial Plasmids

antibiotics attached bacteria bacterial chromosome bacteriocins bacteriophage bacterium base pairs cause cells chloramphenicol chromosomal DNA chromosome chromosome transfer circular molecules cloned Col plasmids ColE1 ColEl replication coli chromosome colicins conjugative ability conjugative plasmids copy number de-repressed deletion derived DNA molecules DNA polymerase DNA synthesis drug-resistance drugs enzymes essential F pili F-like plasmids found in enterobacteria fragments frequency gene-product genetic Gram-negative Gram-negative bacteria Gram-positive bacteria growth heteroduplex Hfr strains homology incompatibility group infections inhibit initiation insertion sequences inverted repeat IS-elements isolated mating mechanism molecular weight mutants nonconjugative nucleotides occur operon origin of replication parental Hfr penicillin phage pilus plasmid DNA plasmid replication plasmids code plasmids found plasmids specifying produced protein Pseudomonas aeruginosa r-determinant recombination region replication fork replicon repressed repressor resistance genes restriction endonucleases RNA primer Salmonella sex pili Shigella ß-lactamase strands streptomycin sulphonamide tetracycline tetracycline-resistance toxin transcription transfer chromosomal genes transposition transposons vectors