Polymerase Chain Reaction

...also known as the PCR.

this technique is widely used in biotechnology and other science related fields. 

almost every single experiment involves the DNA will be using PCR. 

anyway, just out of boredom...

listen to this lol.....

There was a time when to amplify DNA,
You had to grow tons and tons of tiny cells.

Then along came a guy named Dr. Kary Mullis,
Said you can amplify in vitro just as well.

Just mix your template with a buffer and some primers,
Nucleotides and polymerases, too.

Denaturing, annealing, and extending.
Well it’s amazing what heating and cooling and heating will do.

PCR, when you need to detect mutations.
PCR, when you need to recombine.
PCR, when you need to find out who the daddy is.
PCR, when you need to solve a crime.

(repeat chorus)

p/s: HAHAHA, the black guy in the vid is funny la, summore kiss the thermal cycler lol...