Question

what are the contributions of D.J. Iwanowsky, M.W. Beijerinck W.M. Stanley.
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Answer 1

Explanation:

Iwanowsky (1892)- He first discovered that the TMV (Tobacco Mosaic Virus) causing mosaic disease of tobacco is smaller than any bacteria and can cross easily through porcelain bacterial filter. M. Beijerinck (1898): He further established that viruses like TMV can replicate or proliferate only in growing plant cell.

In 1935 Wendell Stanley (1904-1971), a young chemist working in the Rockefeller Institute's laboratories in Princeton, NJ, purified a virus in the form of needle-shaped crystals with the chemical properties of a protein. It was perhaps the most startling discovery to date in the Institute's history.

Answer 2

Answer:

Iwanowsky (1892)- He first discovered that the TMV (Tobacco Mosaic Virus) causing mosaic disease of tobacco is smaller than any bacteria and can cross easily through porcelain bacterial filter. M. Beijerinck (1898): He further established that viruses like TMV can replicate or proliferate only in growing plant cell.

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