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A virus that remains in the host without producing progeny, able to reactivate later, is said to be

  • A.lytic
  • B.abortive
  • C.defective
  • D.latent

Answer: D

In latency the genome persists in the cell with little or no gene expression and no progeny, and some later stimulus restarts the productive cycle. Herpes simplex virus in sensory ganglia is the standard example, and it is why a first infection can recur for a lifetime.

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