The polymerase chain reaction is used to
A)amplify certain sections of DNA.
B)amplify mRNA.
C)produce proteins.
D)produce long polymers of carbohydrates to be used in electrophoresis.

Question

Quizplus · Accepted Answer

The polymerase chain reaction (PCR) is a technique used to amplify specific sections of DNA. This is done by repeatedly cycling through denaturation, annealing, and extension steps using a DNA polymerase enzyme and specific primers. PCR is commonly used in research and diagnostic labs for applications such as genetic testing, forensics, and disease diagnosis. B, C, and D are incorrect because PCR is not used to amplify mRNA, produce proteins, or create long polymers of carbohydrates.

The Polymerase Chain Reaction Is Used to