Describe the process of DNA transcription:

The DNA double helix unravels as helicase breaks the hydrogen bonds between base pairs. RNA polymerase binds to the promoter region on the DNA strand. The RNA polymerase transcribes the DNA coding strand by bringing free RNA nucleotides to bind. The complementary nucleotides bind with phosphodiester bonds to produce an RNA molecule. The DNA-RNA hydrogen bonds break and the newly synthesised RNA strand is released. The RNA then may experience more processing in the nucleus such as splicing before leaving the nucleus via nuclear pores into the cytoplasm for DNA translation.

Answered by Erin C. Biology tutor

4487 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Explain synaptic transmission at a cholinergic synapse.


The allele y occurs with a frequency of 0.8 in a population of clams. Give the frequencies of the genotypes YY, Yy and yy.


What is the structure of DNA?


How do electrical impulses control contraction of the heart?


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