Explain the principles of PCR

The Polymerase Chain Reaction (PCR) is a method of DNA amplification in vitro. It consists of 3 stages - denaturation, annealing and extending. PCR relies on the use of a thermophilic Taq polymerase enzyme.

DB
Answered by David B. Biology tutor

5050 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

How is an action potential fired?


What is genetic dominance?


What specialised structures do the lungs have to allow diffusion of gases?


Rat poison is not always an effective rodenticide and will reduce in effectiveness with age. Explain why


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning