Explain how the structure of mRNA differs from the structure of DNA

The structure of mRNA differs from the structure of DNA in that mRNA is a single-stranded molecule whereas DNA is a double-stranded molecule in the form of a helix. Another difference between them is that the sugar molecule present on mRNA is ribose but in DNA is deoxyribose, meaning that it lacks an oxygen atom on carbon atom number 2. In addition, in mRNA uracil replaces thymine present in DNA as one of its bases. Lastly, DNA contains base pairs linked via hydrogen bonds whereas mRNA lacks these. 

MZ
Answered by Maria Z. Biology tutor

17631 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

How is an electrical impulse transmitted through the heart?


Explain how applying increasing pressure to a Pacinian corpuscle produces a larger change in membrane potential.


Did we evolve from apes? What does the term 'common ancestor' really mean?


How do bacteria acquire resistance to antibiotics?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences