Answer:
The polymerase chain reaction is the process which is use to replicate DNA in a lab for testing.
Step-by-step explanation:
- In the lab testing, DNA of the sample is amplified in the polymerase chain reaction.
- Polymerase chain reaction is the cyclic process in which double helix of DNA is separated and used as template for the production of new DNA.
- The different temperature changes leads to the process of PCR.
- This technique is known as PCR.