Question

which statement about pcr is true? pcr can only replicate a few strands of dna, and cannot replicate specific regions. pcr does not require nucleotides. primers are not necessary for pcr. pcr does not generate a complementary dna strand. dna polymerase is the enzyme that copies dna in pcr.

Explanation:

PCR (Poly - merase Chain Reaction) is a technique to amplify DNA. It requires nucleotides as building blocks, primers to initiate replication, and generates complementary DNA strands. DNA polymerase is the enzyme that copies DNA during PCR, extending the primers and synthesizing new DNA strands.

Answer:

DNA polymerase is the enzyme that copies DNA in PCR.