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The discovery of viruses was made by-

  • A.Ivanovsky
  • B.Beijerinck
  • C.Miller
  • D.Stanley

Answer: A

Dmitri Ivanovsky discovered viruses in 1892, showing that the agent of tobacco mosaic disease passed through a filter fine enough to hold back all bacteria.

Beijerinck repeated the work in 1898 and named it a contagious living fluid; Stanley crystallised the virus in 1935.

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