Skip to Content

VICC toll-free number 1-877-936-8422

Polymerase Chain Reaction


polymerase chain reaction

A laboratory method used to make many copies of a specific DNA sequence. Also called PCR.

A procedure that produces millions of copies of a short segment of DNA through repeated cycles of: (1) denaturation, (2) annealing, and (3) elongation. Polymerase chain reaction is a very common procedure in molecular genetic testing and may be used to generate a sufficient quantity of DNA to perform a test (e.g., allele-specific amplification, trinucleotide repeat quantification). Also called PCR.

Last updated: 2016-01-06

Source: The National Cancer Institute's Dictionary of Cancer Terms (