PCR-Machines are based on Polymerase Chain Reaction (PCR) and produce copies of genes exponentially. The PCR cycling reactions are carried out in an automated thermocycler, which is capable of ...

First, two short DNA sequences called primers ... and the mixture is placed in a PCR machine. The PCR machine increases and decreases the temperature of the sample in automatic, programmed steps.

A few essential ions and salts The PCR process then uses these ingredients to mimic the natural DNA replication process that occurs in cells. To automate this process, a machine called a ...