In 1935 W.M. Stanley prepared an extract of:
Correct answer: A. Tobacco mosaic virus (TMV)
- A. Tobacco mosaic virus (TMV)
- B. Human immunodeficiency virus (HIV)
- C. Flu virus
- D. Polio virus
Explanation
Wendell Stanley studied the tobacco mosaic virus, which attacks the leaves of tobacco plants. From considerable quantities of infected tobacco leaves, he succeeded in extracting the virus in the form of pure crystals in 1935.
Last updated
Related questions
A bacteriophage is attached to the receptor site on the host cells:
A bacteriophage replicates only in a_ cell
A bacterium divides every 36 minutes. If a culture containing 105 cells/ml is grown for 180 minutes, what will be the cell concentration after that period?
A bite of tsetse fly may pass to humans
A capsid, the protective coat of a virus, is made up of subunits known as capsomeres that are _ in nature.