What are the differences between exons and introns found in DNA.

Exons are coding regions of DNA, and are copied into mRNA and transcribed as proteins.

Introns are non-coding regions of DNA, and are spliced out of pre-mRNA so are not copied into mRNA.

AP
Answered by Alastair P. Biology tutor

10080 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

Which of these nucleotide bases is NOT present in RNA: Cytosine, Thymine, Guanine, Adenine, Uracil


why does vision using the fovea have high visual acuity, but low sensitivity to light compared with vision using other parts of the retina.


In a healthy person the blood glucose level in the hepatic vein fluctuates much less than that in the hepatic portal vein. Explain why.


What is transpiration and what factors affect its rate of occurrence? Describe some adaptations of xerophytic plant that reduce water loss via transpiration.


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