1 Breathe in deeply through your nose, expanding your abdomen and then filling your lungs with air. 2  Hold your breath for a couple of seconds. 3  Breathe out slowly through your mouth and empty your lungs completely.  Repeat for 5 to 10 minutes.
PCR is the enzymatic amplification of a specific DNA sequence in vitro9. This process uses multiple cycles of template denaturation, primer annealing, and primer elongation to amplify DNA sequences. It is an exponential process since the amplified products from each previous cycle serve as templates for the next cycle of amplification,
In molecular biology, the polymerase chain reaction (PCR) is a technique to amplify a single or few copies of a piece of DNA across several orders of magnitude, generating thousands to millions of copies of a particular DNA sequence. ^ In the 1980s, he invented the polymerase chain reaction (PCR), a central technique in molecular biology which allows the amplification of specified DNA sequences.