outline the steps of DNA transcription


RNA polymerase is the enzyme used to bind the DNA section of interest and recruit the free bases needed to form a new mRNA strand. DNA is transcribed on to an mRNA strand because it is too large to leave the nucleus and mRNA is single stranded with the ability to leave the nucleus and enter the cytoplasm of the cell, where translation can occur (the production of polypeptide chains from messenger RNA using ribosomes and tRNA).The antisense strand is read (5' to 3' direction) and RNA polymerase and forms a complementary mRNA sequence with this strand. The sense strand is NOT transcribedthe new mRNA strand leaves the nucleus and enters the cytoplasm where it is used by ribosomes (that either roam the cell freely or are attached to the rough endoplasmic reticulum)for translation.

AA
Answered by Adaeze A. Biology tutor

3054 Views

See similar Biology A Level tutors

Related Biology A Level answers

All answers ▸

What is the difference between mRNA and tRNA?


How does Acetylcholine act on a neuronal synapse, and how is it re-uptaken?


three part question 1. what are dissacharides 2. what are maltose, lactose and sucrose formed of 3. what is the bond between them called


How is heart rate controlled?


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning