Question

Who proved that viruses are crystalline like structures?

• A. W M Stanley
• B. Ivanowsky
• C. M W Beijerinek
• D. Lavoisier

Answer 1

Answer:

B. 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.