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  • Chapter 13 Bacterial Viruses
    • 13-1 We can monitor bacterial viruses with the naked eye by seeing their effects on the bacterial hosts.
    • 13-2 Lambda phage is a lysogenic virus with double-stranded DNA.
    • 13-3 DNA damage causes lambda to enter the lytic cycle.
    • 13-4 T4 is a large, lytic phage with a large double-stranded DNA genome
    • 13-5 Restriction-modification systems limit the host range of T4.
    • 13-6 Viruses need to pack virions with complete genomes and also provide energy for entry into a new host
    • 13-7 P22 is a lysogenic, double-stranded DNA phage that was important in the development of bacterial genetics.
    • 13-8 P1 is a double-stranded DNA phage with an unusual ability to infect different hosts
    • 13-9 P1 replicates its DNA independently of the host chromosome when in a lysogenic state.
    • 13-10 Qβ is a small, single-stranded RNA virus.
    • 13-11 As an RNA virus, Qβ has special problems to overcome.
    • 13-12 Qβ packs a great deal of information into its small RNA genome.
    • 13-13 M13 has a genome composed of a single-stranded, circular DNA molecule.
    • 13-14 M13 expresses all of its genes at the same time and produces progeny without killing the host cell.
    • 13-15 Some phage lysogens cause their hosts to become pathogenic.
    • 13-16 Summary