In E. coli, DNA polymerases IV and V participate in
a. nucleotide excision repair.
b. photoreactivation.
c. error-prone synthesis of DNA.
d. mismatch repair.
e. base excision repair.
Ans: c
You might also like to view...
The image in the above photograph is a prime
example of a. double mutualism. b. associative commensalism. c. interference competition. d. team predation. e. parasitism
In both plants and animals, the vascular system
transports a. water. b. nutrients. c. chemical signaling molecules. d. defensive molecules. e. all of these.
An individual mixotroph loses its plastids, yet continues to survive. Which of the following most likely accounts for its continued survival?
A) It relies on photosystems that float freely in its cytosol. B) It must have gained extra mitochondria when it lost its plastids. C) It engulfs organic material by phagocytosis or by absorption. D) It has an endospore.
What separates the lungs from the thoracic cavity?
A. skeletal muscle B. alveoli C. pleurae D. cartilaginous rings E. bone