T.O. Diener discovered

T.O. Diener discovered a:

Options

(a) free infectious DNA
(b) infectious protein
(c) bacteriophage
(d) free infectious RNA

Correct Answer:

free infectious RNA

Explanation:

Theodor O. Diener discovered the Potato Spindle Tuber Viroid (“PSTVd”), the first viroid ever identified, in 1971. PSTVd is a small, circular RNA molecule. Dr. Diener discovered that the pathogen causing potato spindle tuber disease is not a virus, as previously believed, but a much smaller, free RNA molecule.

admin:

Related Questions

  1. The protein whose removal enables myosin to bind actin in smooth muscle is
  2. Unloading of minerals occur at
  3. In Bt cotton, the Bt toxin present in plant tissue as pro-toxin is converted
  4. Which one is used as vector in genetic engineering?
  5. Which one of the following features is common in silver,fish,scorpion,dragonfly