Explain the process of DNA replication (6 marks).

The parental DNA is unwound from its double helix structure.DNA Helicase enzymes break hydrogen bonds between the bases of the parental DNA.DNA polymerase enzymes add free nucleotides to the daughter strands using complementary base pairing.Leading strand synthesised continuously whereas lagging strand synthesised in fragments.DNA Ligase enzymes seal fragments.This forms two identical daughter strands.

Answered by Gerald H. Biology tutor

17514 Views

See similar Biology GCSE tutors

Related Biology GCSE answers

All answers ▸

What is an autotroph?


Sodium atoms react with chlorine atoms to produce sodium chloride (NaCl). Describe what happens when a sodium atom reacts with a chlorine atom.


Explain how an adult develops immunity to the toxin.


What is Evolution?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences