Which of the following diseases known to be caused by a viroid?
a) the hepatitis A
b) the hepatitis B
c) the hepatitis C
d) the hepatitis D
Naked strands of RNA that infect plants are called……..
a) prions
b) virions
c) viriods
d) retrovirions
EXERCISE:
Which of these characteristics of living thing is exhibited by a virus?
a) heredity
b) metabolism
c) response to stimulus
d) interaction with the environment
Of the following antibiotics, which is the most effective against most viral infections?
a) penicillin
b) erythromycin
c) zanax
d) none of these
Transcription is the making RNA from a DNA template. Which of the following would be the best definition of reverse transcription?
a) making a protein from a DNA template
b) making a DNA using an RNA molecule as a template
c) making polysaccharides out of monosaccharides
d) none of these
