Polymerase chain reaction (PCR) is a lab technique used to make many copies of a specific part of DNA. It involves mixing a small sample of DNA with special chemicals and enzymes. These enzymes help copy the DNA by repeatedly heating and cooling the mixture. PCR makes it possible to turn a small amount of DNA into a large amount that can be tested. This technique is widely used in medical tests, research, and forensic science to identify infections, study genetic information, and analyze DNA sequences.

“polymerase chain reaction”的英语定义和含义

Download Mobile App