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PCR

   Also found in: Dictionary/thesaurus, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.06 sec.
PCR polymerase chain reaction.
PCR
abbr.
polymerase chain reaction
Polymerase chain reaction (PCR)
A test performed to evaluate false-negative results to the ELISA and Western blot tests. In PCR testing, numerous copies of a gene are made by separating the two strands of DNA containing the gene segment, marking its location, using DNA polymerase to make a copy, and then continuously replicating the copies. The amplification of gene sequences that are associated with HIV allows for detection of the virus by this method.
Mentioned in: AIDS Tests
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