Home Biology Biological Classification All Topic Question For Revision Test Mark the mis-matched pair – (a)W.M StanelyVi…
Biology Biological Classification All Topic Question For Revision Test Single Correct MCQ
Published on: August 13, 2026

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

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Text Solution

Verified by Experts
The correct answer is:
B

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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