Viral Replication

Add yours

Sorry, we don't have any videos for this topic yet.
Let teachers know you need one by requesting it

Log in so we can tell you when a lesson is added.

Key Questions

  • Viruses (virions) have to make more copies of themselves so they can spread. This is what we call viral replication.

    In general, virus replication goes through the following five steps:
    1. Adsorption, the attachment of viruses to host cells.

    1. Penetration, the entry of virions (or their genome) into host cells. Some leave the capsid and envelope behind.

    2. Synthesis, the synthesis of new nucleic acid molecules, capsid proteins, and other viral components within host cells while using the metabolic machinery of those cells. They hijack the cells' metabolic processes.

    3. Maturation, the assembly of newly synthesized viral components into complete virions.

    4. Release, the departure of new virions from host cells. Release generally, but not always, kills (lyses) host cells. (Some types will wait for a long time while hiding and are said to be lysogenic).

  • This key question hasn't been answered yet. Answer question
  • This key question hasn't been answered yet. Answer question