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History of Microorganisms in Disease

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Questions and Answers

What distinguished viruses from other microorganisms, as mentioned in the text?

They were associated with disease and death.

They could be cultivated on artificial media.

They were visible under a light microscope.

They could pass through a 0.2µ filter. (correct)

Who performed classical investigations on the mosaic disease of tobacco, as mentioned in the text?

Koch

Pasteur

Beijerink

Mayer (correct)

What key concept was first discovered about viruses according to the text?

They could pass through a 0.2µ filter. (correct)

They were large in size.

They could be cultivated on artificial media.

They were visible under a light microscope.

Which scientist postulated enormously enhanced isolation and characterization of disease-inciting microorganisms or 'germs' in 1880?

Koch Signup and view all the answers

What did viruses retain when passing through a porcelain filter, as mentioned in the text?

Infectivity Signup and view all the answers

What was a limitation of viruses mentioned in the text that differentiated them from bacteria?

They could not be cultivated for study on artificial media. Signup and view all the answers