Mark the mis-matched pair –
(a) | W.M Stanely | Viruses could be crystallized and crystals consists largely of proteins |
(b) | Pasteur | Recognised certain microbes as casual organism of the tobacco mosaic disease |
(c) | M.W. Beijerink | Contagium vivum fluidum |
(d) | T.O. Diener | Discovered a new infectious agent that was smaller than viruses |
Text Solution
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W.M. Stanley: Correct. He crystallized the Tobacco Mosaic Virus (TMV) in 1935 and showed they are largely protein.
Pasteur: Mismatched. D.J. Ivanowsky (1892) recognized certain microbes as the casual organisms of tobacco mosaic disease, not Pasteur.
M.W. Beijerinck: Correct. He demonstrated that the extract of infected tobacco plants could cause infection in healthy plants, calling the fluid Contagium vivum fluidum (infectious living fluid).
T.O. Diener: Correct. He discovered viroids, which are smaller than viruses and lack a protein coat.
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