The first step in the PCR is (a) denaturation (b) primer extension (c) annealing (d) cooling

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Muskan Anand

1 year ago

Option A.The primers anneal to the 3' end of single strands of DNA. Extension- The primers are extended by DNA polymerase by the addition of nucleotides to form complete strands of DNA. Hence the sequence of steps is denaturation, annealing, extension

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