Question

the enzyme used to carry out the polymerase chain reaction (pcr) on dna is
multiple choice
reverse transcriptase
dna polymerase
transcriptase
rna polymerase

Explanation:

PCR is a technique to amplify DNA. DNA polymerase is the enzyme that synthesizes new DNA strands by adding nucleotides complementary to the existing DNA template during PCR. Reverse - transcriptase is used to make DNA from RNA. Transcriptase is a general term and RNA polymerase is used for synthesizing RNA from a DNA template.

Answer:

B. DNA polymerase