Why is Taq polymerase used in a polymerase chain reaction (PCR)?
A. Taq polymerase is more efficient than other DNA polymerases.
B. Unlike other DNA polymerases, Taq polymerase is heat stable and survives the 94 degree denaturation step in PCR.
C. Taq polymerase can produce DNA from an RNA template, unlike other DNA polymerases.
D. Unlike other DNA polymerases, Taq polymerase is not inhibited by dideoxy nucleotides.
E. Taq polymerase has proofreading activity and thus makes fewer errors than other DNA polymerases.
Answer: B
You might also like to view...
Answer the question using the accompanying figure. The structure labeled “B” forms at the ____
a. junctions of A bands and I bands b. H zone c. junctions of A bands and H zones d. M line e. junctions of I bands and M lines
Sensory pathways of smell and taste
a. begin with chemoreceptors. b. end up in the cerebral cortex. c. reach the limbic system. d. are integrated with stored memories. e. include all of these.
The first tetrapods evolved
a. on land. b. after the amphibians. c. in water. d. after the first amniotes. e. from the ray-finned fishes.
________ is an inherited disorder of the lungs. A genetic mutation causes the lungs to produce a thick mucous that clogs air passages
Fill in the blank(s) with correct word