Why Is Heating a First Step in PCR Amplification of Extracted

Multiple Choice

Why is heating a first step in PCR amplification of extracted DNA?

A) The enzyme DNA polymerase works at a higher temperature.
B) The nucleotides bind together at high heat.
C) It is necessary for DNA strands to anneal to each other.
D) It permits hydrogen bonds between DNA strands to dissociate.
E) It is required for primers to bind permanently to the DNA.