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Biological Classification — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYBiological Classification1 Mark
MCQ
Contagium vivum fluidum was proposed by.
  • A
    D.J. Ivanowsky.
  • B
    M.W. Beijerinek.
  • C
    Stanley.
  • D
    Robert Hook.
✓

Answer

  1. M.W. Beijerinek.

Explanation:

Beijerinek demonstrated that extracts of infected tobacco plant can cause infection in healthy plants and termed the fluid as contagium vivum fluidum (infectious living fluid).

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