Can you explain the process of DNA transcription?

The first stage of gene expression is DNA transcription. Transcription is the formation of single stranded mRNA from double stranded DNA. During transcription, the enzyme DNA helicase unwinds the double helix by breaking the hydrogen bonds between the complementary DNA base pairs. Free RNA nucleotides are attracted to exposed complementary DNA bases. These RNA nucleotides are bonded by RNA polymerase to form mRNA. This mRNA leaves the nucleus, through nuclear pores, where it is attracted to the ribosome in the cytoplasm. 

AM
Answered by Ashley M. Biology tutor

3657 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Explain the difference between Humoral and Cellular adaptive immune response.


Describe the process of ventilation


Suggest how a wood mouse maintains a constant body temperature when in a cold environment?


Explain the four levels of protein structure, indicating the significance of each level


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