Episomes

ABCabc ability allele autonomous bacterial chromosome bacterial genes bacteriophage base sequence cellular Chap chromo colicin colicinogeny conjugation crosses crossover curing defective deletion diploid DNA molecule donor double lysogen element enzyme episome Escherichia coli excision F agent fact frequency gene order genetic map haploid heteroimmune Hfr strains induced infection insertion integrase integrated isolated known lac operon lac region lambda dg lambda phage lambda prophage linear linkage located locus lysogenic bacterium lysogenic cell markers mechanism molecular multiplication mutants normal observed occur operon partial diploid phage 80 phage chromosome phage genome phage lambda phage P22 phage particles physical physiological plaques plasmids produce properties prophage prophage attachment protein recombinase recombination replication repression repressor resistance determinants segregation specific str cam strands structure studies superinfection synthesis temperate phages tion trans transcription transducing particles transducing phages transduction transfer agents transfer factor virus wild-type