Multiple choice

Viruses produce _________ but bacterias do not.

  1. interferons

  2. endotoxins

  3. exotoxins

  4. bacitracins
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Interferons are a family of host-coded proteins produced by cells on induction by viral inducer. Interferon does not act on virus, but it renders other host cells refractory to virus. Interferons (IFNs) are natural cell-signaling proteins produced by the cells of the immune system of most vertebrates in response to challenges, such as viruses, parasites and tumour cells.

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