What does the acronym PCR stand for? - ProProfs Discuss
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What does the acronym PCR stand for?




This question is part of PCR quiz
Asked by Drcoetzer, Last updated: Nov 01, 2019

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A. Lucius

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A. LuciusSenior Content writer, Diploma in Literature, Dover, Delaware
Senior Content writer, Diploma in Literature, Dover, Delaware

Answered on Nov 01, 2019

The acronym PCR stands for Polymerase Chain Reaction. PCR is a popular lab technique that is used to make multiple copies of a particular segment of DNA in vitro (inside a test tube instead of an organism). It was developed by Kary Mullis in 1983. PCR occurs in 3 stages. These stages are denaturation stage, annealing stage, and elongation (extension) stage.

The denaturation stage is the first stage. At this stage, the temperature is increased to about 92 degrees Celsius. The heat helps break hydrogen bonds between DNA strands. In the annealing stage, the temperature is reduced to 55 to 65 degrees Celsius to allow primers to bind the complementary sequence on template DNA. In the last stage, the temperature is raised again to 72 degrees Celsius to allow the synthesis of new DNA strands.

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drcoetzer

Drcoetzer

Answered on Jun 05, 2019

Polymerase Chain Reaction

The polymerase chain reaction (PCR) is a scientific technique in molecular biology to amplify a single or a few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence.
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