Describe how mRNA is produced in a cell (5 marks)
Double-helix DNA strands are separated by breaking the hydrogen bonds between complementary bases. One strand acts as a template strand which complementary bases bind to (adenine to uracil, thymine to adenine, cytosine to guanine, guanine to cytosine). RNA Polymerase joins together the RNA nucleotides forming pre-mRNA. Introns are removed by splicing to form mRNA.
SG
Related Biology A Level answers
All answers ▸"why has the amount of antibiotics in animal feeds gone down in recent times"
Describe and explain the process of glycolysis
What effect does ADH release have on the blood osmolarity?
Describe and explain how the alveoli are adapted to facilitate effective gas exchange in the lungs.