The Key Elements of a PCR Reaction Are ____

Multiple Choice

The key elements of a PCR reaction are ____.

A) the four nucleoside triphosphates, DNA primase, DNA polymerase, and an agarose gel
B) a pair of primers, the four nucleoside triphosphates, DNA primase, and DNA polymerase
C) DNA with the target sequence to be amplified, the four nucleoside triphosphates, DNA primase, and DNA polymerase
D) DNA with the target sequence to be amplified, a pair of primers, the four nucleoside triphosphates, and DNA primase
E) DNA with the target sequence to be amplified, a pair of primers, the four nucleoside triphosphates, and DNA polymerase