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Viruses are most commonly grown in the laboratory in

  • A.cell culture systems
  • B.nutrient broth
  • C.blood agar
  • D.cell-free enzyme extracts

Answer: A

A virus needs living cells, so it cannot be grown on the sterile media that support bacteria however rich they are. Cell culture is the routine method, with animal inoculation kept for the minority of viruses that will not grow in it.

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