Polymerase chain reaction is a method widely used to rapidly make millions to billions of copies of a specific DNA sample, allowing scientists to take a very small sample of DNA and amplify it to a large enough amount to study in detail.

PCR Learn is an app that collect information about various PCR techniques definition and uses of it :
Real-Time PCR
Reverse-Transcriptase
Multiplex PCR
Nested PCR
High Fidelity PCR
Fast cycling PCR
Hot Start PCR
Inverse PCR
Amplified fragment length polymorphism
Digital PCR