pathology

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4 Terms

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Lytic Cycle

A viral reproductive cycle in which the virus replicates and lyses the host cell, releasing new viruses.

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Steps of the Lytic Cycle

  1. Attachment: Virus binds to the host cell.
  2. Penetration: Virus injects its genetic material into the host cell.
  3. Replication: Viral DNA replicates using the host's cellular machinery.
  4. Assembly: New viral particles are assembled.
  5. Lysis: The host cell bursts, releasing the newly made viruses.
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Lysogenic Cycle

A viral reproductive cycle in which the viral DNA is incorporated into the host cell's DNA and replicates along with it without causing cell lysis.

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Steps of the Lysogenic Cycle

  1. Attachment: Virus binds to the host cell.
  2. Penetration: Virus injects its genetic material into the host cell.
  3. Integration: Viral DNA integrates into the host cell's chromosome, becoming a prophage.
  4. Replication: The prophage is replicated along with the host cell's DNA during cell division.
  5. Induction (optional): Under certain conditions, the prophage can excise from the host chromosome and enter the lytic cycle.