How is mRNA produced in the nucleus of a cell
Helicase breaks hydrogen bonds between the 2 DNA strands to separate them1 DNA strand acts as template (the sense strand)Free RNA nucleotides then attach to exposed complementary bases on the sense strand by base pairingRNA polymerase joins the RNA nucleotidesPre-mRNA strand is formed, then spliced to remove the introns
KL
Related Biology A Level answers
All answers ▸How do electrical impulses control the regular beating of the heart?
Describe the process that allows an action potential to be passed across a synapse in the parasympathetic nervous system.
What are the stages of mitosis?
In some parts of Africa, where malaria commonly occurs, there are higher frequencies of the allele that causes sickle-cell anaemia.