Written by the Fiveable Content Team โข Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examโขWritten by the Fiveable Content Team โข Last updated September 2025
Definition
The polymerase chain reaction (PCR) is a laboratory technique used to amplify a specific segment of DNA. It allows researchers to make multiple copies of a particular DNA sequence in order to study it or use it for further experiments.
Related terms
Primers: Short DNA sequences that serve as starting points for the PCR reaction.