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Polymerase Chain Reaction

View the animation below, then complete the quiz to test your knowledge of the concept.






1PCR requires all of the following EXCEPT
A)primers.
B)DNA ligase.
C)DNA polymerase.
D)DNA of interest.
E)deoxyrobinucleotides.



2If you start with one double-stranded DNA molecule and you perform SIX cycles of PCR, how many double-stranded copies of the DNA will you have?
A)6
B)8
C)16
D)32
E)64



3The most likely source of the Taq polymerase used in PCR is a bacterium that lives in
A)soil.
B)arctic ice.
C)hot vents.
D)humans.
E)plants.



4PCR can be used to amplify DNA from any source.
A)True
B)False



5During the PCR, the hydrogen bonds of the double-stranded DNA molecules are broken by the enzyme helicase.
A)True
B)False







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