Explain how DNA replicates inside a cell

DNA is made up of 4 bases (Adenine, Thymine, Guanine, Cytosine)

Adenine, guanine = purine 'Pure AGony'

Thymine and cytosine  = pyramidines

Adenine pairs with thymine (2 Hydrogen bonds - '2 people know where it is AT')

Cytosine pairs with guanine (3 hydrogen bonds)

DNA polymerase is an ezyme involved in the process. It 'unzips' the sugar phosphate backbone. The replication is semi-conservative (ie. the new molecule consists of one old stand of DNA and one new strand.

Answered by Claire D. Biology tutor

2587 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

How does an action potential travel from one neurone to another?


What is the importance of maintaining a constant body temperature in mammals?


Describe the structure of proteins


How can you determine what the direction of the shift is in the Bohr effect?


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