What are the enzymes involved in the process of DNA replication?

DNA Helicase - unwinds and unzips the DNA double helix by breaking the hydrogen bonds DNA Gyrase - this helps to stabilise the single strands Single-Strand Binding Proteins - these proteins, though not exactly enzymes, hold the two strands apart and prevent them from rejoining DNA Polymerase 3 - main enzyme invovled in the synthesis of of the new strand of DNA and it replicates in a 5'->3' direction only (continuous function on the leading strand and discontinous on the lagging) RNA Primase - this makes a short chain of RNA which forms a primer to enable the initiation of replication DNA Polymerase 1 - this removes the primers and replaces them with DNA fragments DNA Ligase - this seals the nicks in the gaps between the Okazaki fragemtns which forms as a result of the discontinous replication on the lagging strand, resulting in the formation of a full DNA strand

DG
Answered by Dominic G. Biology tutor

10984 Views

See similar Biology IB tutors

Related Biology IB answers

All answers ▸

What are some of the genetic mechanisms that can contribute to and lead to speciation?


Outline the precautionary principle.


What is the role of receptors in mediating steroids and protein hormones?


Discuss the relative importance of genetic and cultural evolution in the recent evolution of humans.


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:

© 2025 by IXL Learning