Question

Give an example of how PCR is used.

Answer 1

Polymerase chain reaction [PCR]:

1. The polymerase chain reaction (PCR) is a biotechnological technique for duplicating a DNA (Deoxyribonucleic acid) segment.
2. PCR is a very accurate method for amplifying (or copying) a specific DNA target from a mix of DNA molecules.
3. Denaturation, annealing, and extension are the three stages of a PCR process.

Example:

1. The examination of tumors is an excellent example of PCR.
2. PCR might be used to identify and amplify the DNA of tumor suppressor genes and proto-oncogenes.