What is a PCR test?

PCR test. There are several answers but the most universal is the polymerase chain reaction test used to multiply dna sampling to determine pathogens and also for use in legal specimen procedures. It can also be used for human genetic testing for disease incidence and susceptibility.
Many tests use PCR. As one method in the process. Pcr is a way to amplify dna and many tests use this method, e.g., detecting viral nucleic acid in donor blood, paternity testing, blood tests for diagnosis of viral infections, genetic testing etc. See the site below. http://www.ncbi.nlm.nih.gov/projects/genome/probe/doc/techpcr.shtml.

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