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Glossary Genetics / Term

polymerase chain reaction (PCR)

A fast, inexpensive technique for making an unlimited number of copies of any piece of DNA. Sometimes called "molecular photocopying," PCR has had an immense impact on biology and medicine, especially genetic research.

Dr. Leslie Biesecker, of the National Human Genome Research Institute's Laboratory of Genetic Disease Research, defines polymerase chain reaction (PCR).

Related terms: cell, deoxyribonucleic acid (DNA).

Permanent link polymerase chain reaction (PCR) - Modification date 2020-01-16 - Creation date 2020-01-16


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