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Who proved that viruses are crystalline like structures?

Who proved that viruses are crystalline like structures? Correct Answer Ivanowsky

Ivanowsky discovered viruses as micro-organisms on tobacco plant and are smaller than bacterium. Later M W Beijerinek termed them as “Viruses” which means venom or poison. W M Stanley for the first time proved that viruses are crystalline like structures and these crystals are made of protein rich sheaths.

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