polymerase chain reaction ( PCR) | What are the 3 main steps in a PCR reaction?

This video not only describes the basic principle behing pcr but also the story behind its discovery.
this video would describe What are the 3 main steps in a PCR reaction? What are the major components of a PCR reaction?; What are the chemicals used in PCR? ; What are the 5 main ingredients in a PCR?, What is the product of PCR reaction?.

Видео polymerase chain reaction ( PCR) | What are the 3 main steps in a PCR reaction? канала Animated biology With arpan