History and Discovery of Viruses

Who invented the Chamberland filter, which was crucial in the early study of viruses?

• Felix d'Herelle

• Demitri Ivanowski

• Charles Chamberland

• Frederick Twort

What was the significant contribution of the electron microscope to virology?

• It was used to study the tobacco mosaic virus.

• It helped in the discovery of bacteriophages.

• It enabled the visualization of viruses for the first time.

• It allowed the cultivation of viruses in chicken eggs.

Which scientist is known for examining the tobacco mosaic virus and finding it to be mainly made from protein?

• Ernest Goodpasture

• Wendell Stanley

• John Enders

• Thomas Weller

What was the breakthrough achieved by Ernest Goodpasture and Alice Woodruff in 1931?

• They discovered bacteriophages.

• They grew viruses in fertilized chicken eggs.

• They invented the electron microscope.

• They identified the structure of RNA in viruses.

During which period was the golden age of virus discovery, where most documented species were identified?

• Early 19th century

• Late 19th century

• First half of the 20th century

• Second half of the 20th century