19.2 Viruses <br />
Virus <br />Particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting livin...
Capsid<br />Outer protein coat of a virus.<br />
Bacteriophage<br />Virus that infects bacteria.<br />
Lytic Infection<br />Process in which a virus enters a cell, makes copies of itself, and causes the cell to burst.<br />
Lysogenic Infection <br />Process in which a virus integrates its DNA into the DNA of the host cell, and the viral genetic...
Prophage <br />The viral DNA that is embedded in the host cell’s DNA.<br />
Retrovirus <br />Virus that contains RNA as its genetic information.<br />
Key Concept<br />What is the structure of a virus?<br />A typical virus is composed of a core of DNA or RNA surrounded by ...
Key Concept<br />How do viruses cause infection?<br />In a Lysogenic infection, a virus integrates its DNA into the DNA of...
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Biology 19.2

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Biology 19.2

  1. 1. 19.2 Viruses <br />
  2. 2. Virus <br />Particle made up of nucleic acid, protein, and in some cases lipids that can replicate only by infecting living cells.<br />
  3. 3. Capsid<br />Outer protein coat of a virus.<br />
  4. 4. Bacteriophage<br />Virus that infects bacteria.<br />
  5. 5. Lytic Infection<br />Process in which a virus enters a cell, makes copies of itself, and causes the cell to burst.<br />
  6. 6. Lysogenic Infection <br />Process in which a virus integrates its DNA into the DNA of the host cell, and the viral genetic information replicates along with the host cell’s DNA.<br />
  7. 7. Prophage <br />The viral DNA that is embedded in the host cell’s DNA.<br />
  8. 8. Retrovirus <br />Virus that contains RNA as its genetic information.<br />
  9. 9. Key Concept<br />What is the structure of a virus?<br />A typical virus is composed of a core of DNA or RNA surrounded by a protein coat.<br />
  10. 10. Key Concept<br />How do viruses cause infection?<br />In a Lysogenic infection, a virus integrates its DNA into the DNA of the host cell, and the viral genetic information replicates along with the host cell’s DNA. In a Lytic infection, a virus enters a cell, makes copies of itself, and causes the cell to burst.<br />

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