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Question
Contagium vivum fluidum was proposed by ______.
Options
D.J. Ivanowsky
M.W. Beijerinek
Stanley
Robert Hook
Solution
Contagium vivum fluidum was proposed by M.W. Beijerinek.
Explanation:
D.J. Ivanowsky (1892) discovered the virus and recognised certain microbes as the causal organisms of the mosaic disease of tobacco. M.W. Beijerinck (1898) demonstrated that the extract of the infected plants of tobacco could cause infection in healthy plants and called the fluid Contagium vivum fluidum (infectious living fluid). W. M. Stanley (1935) first time showed that viruses could be crystallised and crystals consist largely of proteins.
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