How does the structure of DNA make it an effective carrier of genetic information?

DNA is a very long molecule (one cell contains about 2 metres of DNA!), meaning its coiled structure around proteins called histones allows it to fit into the small space of the nucleus. It also has a double helix structure, making it very stable, and the sugar-phosphate backbone protects the nitrogenous bases from damage (which could lead to mutation). Finally, each nucleotide is paired with a specific other: adenine - thymine, cytosine - guanine, which enables DNA to replicate itself easily and accurately, using the semi-conservative method.

CC
Answered by Charlotte C. Biology tutor

3934 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What are the main components and properties of a plasma membrane?


How are epigenetics involved in regulating gene expression?


Describe evolution by natural selection and how this may lead to speciation?


What is the difference between an endocrine and exocrine gland?


We're here to help

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

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences