Which virus employs the use of an RNA-dependent RNA polymerase?
a. dsDNA viruses
b. Retroviruses
c. ssDNA viruses
d. +RNA viruses
Ans: d. +RNA viruses
You might also like to view...
Species richness on an island is determined by ____
a. distance from the mainland only b. island size only c. the type of species on the island only d. distance from the mainland and island size e. distance from the mainland and type of species on the island
The polarity of DNA synthesis is
A) 5'?3'. B) 3'?5'. C) 5'?2'. D) 2'?5'.
Animal cells are stimulated to divide by mitosis by:
a. colchicines. b. magnetic fields. c. mating. d. growth factors. e. nutrients.
A child is born with a rare disease in which mitochondria are missing from skeletal muscle cells. However, the muscles still function. Physicians find that the
A) muscles contain large amounts of lactate following even mild physical exercise. B) muscles contain large amounts of carbon dioxide following even mild physical exercise. C) muscles require extremely high levels of oxygen to function. D) muscle cells cannot split glucose to pyruvate.