LIFE SCIENCE

Detailed explanation-1: -Polymerase chain reaction, or PCR, is a technique to make many copies of a specific DNA region in vitro (in a test tube rather than an organism). PCR relies on a thermostable DNA polymerase, Taq polymerase, and requires DNA primers designed specifically for the DNA region of interest.

Detailed explanation-2: -PCR is a technique used in the lab to make millions of copies of a particular section of DNA.

Detailed explanation-3: -With the technique called polymerase chain reaction (PCR), scientists can make multiple copies of a specific genetic sequence within DNA. PCR is a powerful tool for researchers because it allows for other types of genetic analysis that require large quantities of DNA.

Detailed explanation-4: -PCR is based on three simple steps required for any DNA synthesis reaction: (1) denaturation of the template into single strands; (2) annealing of primers to each original strand for new strand synthesis; and (3) extension of the new DNA strands from the primers.