Q:

Which ONE of the following is not a feature of interferons?

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Which ONE of the following is not a feature of interferons?


  1. Imparts resistance to virus infection.
  2. Inhibits virtually all viruses.
  3. Released from cells in response to virus infection.
  4. Species specific cellular protein.
  5. Virus specific antiviral effect.

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The answer is E. The production of interferons is induced in host cells by virus; the interferons are not specific, but are an important host defence mechanism against virus infection. They act by inhibiting translation of viral mRNA by host cells.

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