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Which of the Following Is a Step in a PCR

Question 4

Multiple Choice

Which of the following is a step in a PCR?


A) DNA is cooled to a temperature at which the hydrogen bonds holding the strands break.
B) The primers anneal to the complementary sequences on the template DNA.
C) DNA gyrase enzyme relieves the supercoiling ahead of the replication fork.
D) The DNase I synthesizes a new strand of DNA that is complementary to the template DNA.

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