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NEET Biology question

BiologyBiological ClassificationNEET

I. DJ Ivanowsky (1892) recognised certain microbes as causal organisms of the mosaic disease of tobacco II. MW Beijerinck (1898) demonstrated that the extract of infected plants of tobacco could cause infection in healthy plants and called the fluid as *contagium vivum fluidum* III. WM Stanley (1935) showed that these microbes could be crystallised and crystals consist largely of protein The above statements are assigned to

Answer: (B)

Solution

These three statements trace the historical discovery of viruses: Ivanowsky's recognition of the tobacco mosaic agent (1892), Beijerinck's "contagium vivum fluidum" concept

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Question ID VK-088242