Chapter 5 viruses
Chapter 5 Viruses
Chapter outline 5. 1 General Properties of Viruses 5.2 General Features of Virus Reproduction 5.3 Overview of bacterial viruses 5.4 Temperate Bacteriophages: Lysogeny and Lambda 5.5 Overview of animal viruses 5.6 Pox Viruses 5.7 Adenoviruses 5.8 Retroviruses 5.9 Viroids and prions
5.1 General Properties of Viruses 5.2 General Features of Virus Reproduction 5.3 Overview of Bacterial Viruses 5.4 Temperate Bacteriophages: Lysogeny and Lambda 5.5 Overview of Animal Viruses 5.6 Pox Viruses 5.7 Adcnoviruses 5.8 Retroviruses 5.9 Viroids and Prions Chapter outline
5.1 General Properties of viruses viruses differ from living cells in at least three ways: (1) their simple, acellular organization (2)the absence of both dna and rna in the same vIrion, 3)their inability to reproduce independently of cells and carry out cell division as prokaryotes and eukaryotes do
(1) their simple, acellular organization (2) the absence of both DNA and RNA in the same virion, (3) their inability to reproduce independently of cells and carry out cell division as prokaryotes and eukaryotes do. viruses differ from living cells in at least three ways: 5.1 General Properties of Viruses
Viruses can exist in two phases extracellular and intracellular Virion, the extracellular phase, posses few if any enzymes and can not reproduce independently of living cells. In the intracellular phase, viruses exist primarily as replicating nucleic acids that induce host metabolism to synthesize virion components; eventually complete virus particles or virions are released
Virion, the extracellular phase, posses few if any enzymes and can not reproduce independently of living cells. In the intracellular phase, viruses exist primarily as replicating nucleic acids that induce host metabolism to synthesize virion components; eventually complete virus particles or virions are released. extracellular and intracellular Viruses can exist in two phases
Hosts and size Three main classes -animal viruses, bacterial viruses (bacteriophages), and plant viruses. The particular host range of a virus is determined by the virus's requirements for its specific attachment to the host cell and the availability within the potential host of cellular factors required for viral multiplication
Hosts and size Three main classes - animal viruses, bacterial viruses (bacteriophages), and plant viruses. The particular host range of a virus is determined by the virus's requirements for its specific attachment to the host cell and the availability within the potential host of cellular factors required for viral multiplication