A) It is based on the selective binding of antibodies to antigens.
B) The components in the reactions include primers, nucleotides and thermophilic DNA polymerases.
C) PCR reactions are carried out at very low temperatures so that small primers can bind to DNA templates.
D) More than one answer is correct.
Which are characteristics of the polymerase chain reaction (PCR)?
The answer is B. PCR is used to amplify sections of DNA and the reaction is carried out at quite high temperatures.
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