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

4963 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Explain how DNA is converted into protein in eukaryotes.


Relate the structural adaptations of lumbar vertebrae to their functions (6 mark).


What are the stages of mitosis?


Give the name and describe the process by which macrophages kill pathogens.


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