Class 12 Biology Ecology Kingdom - Monera And Viruses



Select the wrong statement
(a)
The viroids were discovered by DJ lvanowski
(b)
WM Stanley showed that viruses could be crystallised
(c)
The term 'Contagium vivum fluidum' was coined by MW Beijerinek
(d)
Mosaic disease in tobacco and AIDS in human being are caused by viruses
Correct answer: (a) 
Solution: All statements are correct except the statement (a), which can be corrected as Viroids were discovered by TO Diener in 1971 as a new infectious agent that was smaller than virus.

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environmental issues
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kingdom - monera and viruses
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