NCIt definition : A method for amplifying a DNA base sequence using multiple rounds of heat denaturation
of the DNA and annealing of oligonucleotide primers complementary to flanking regions
in the presence of a heat-stable polymerase. This results in duplication of the targeted
DNA region. Newly synthesized DNA strands can subsequently serve as additional templates
for the same primer sequences, so that successive rounds of primer annealing, strand
elongation, and dissociation produce rapid and highly specific amplification of the
desired sequence. PCR also can be used to detect the existence of the defined sequence
in a DNA sample.;
Alternative definition : NCI-GLOSS: A laboratory method used to make many copies of a specific DNA sequence.;
Codes from synonyms : CDR0000403140; CDR0000044798;