NEET Botany Biological Classification Questions Solved

NEET - 2015

Select wrong statement.

(1) The viroids were discovered by D.J. lvanowski.

(2) W.M. Stanley showed that viruses could be crystallized.

(3) The term 'contagium vivum fluidum' was coined by M.W. Beijerinek.

(4) Mosaic disease in tobacco and AIDS in human being are caused by viruses.

Audio Explanation:

(1) All statements are correct except the statement (1), which can be corrected as Viroids were discovered by TO Diener in 1971 as a new infectious agent that was smaller than virus.

Difficulty Level:

  • 68%
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  • 13%
  • 9%
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