Final answer:
The polymerase chain reaction (PCR) is a technique used to amplify specific regions of DNA for further analysis. It involves the use of DNA primers and a special DNA polymerase enzyme called Taq polymerase. PCR has a wide range of applications in genetics, forensics, and medical diagnostics.
Step-by-step explanation:
The polymerase chain reaction (PCR) is a technique used to amplify specific regions of DNA for further analysis. It involves the use of DNA primers that are complementary to the target DNA sequence, and a special DNA polymerase enzyme called Taq polymerase.
Taq polymerase is able to withstand the high temperatures involved in PCR. The amplification of DNA allows scientists to purify and study specific DNA sequences, and PCR has a wide range of applications in fields such as genetics, forensics, and medical diagnostics.