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Multiple Choice
Why is a DNA polymerase from a thermophilic bacterium used in PCR?
A
The enzyme makes DNA that is extremely similar to human DNA.
B
It is cheaper to obtain from live microorganisms than producing the enzyme in a lab.
C
This thermophile's DNA polymerase does not require primers to begin DNA synthesis.
D
This thermophile's DNA polymerase can withstand high temperatures that denature most proteins.
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