RNA polymerase moves along DNA unwinding the double helix and breaking the hydrogen bonds between the bases., RNA polymerase synthesises a primary mRNA transcript from RNA nucleotides by complementary base pairing., The primary mRNA molecule then detaches. , Introns (non-coding) are removed, Exons (coding regions) are spliced together to form the mature mRNA transcript..

Transcription and RNA splicing

Leaderboard

Visual style

Options

Switch template

Continue editing: ?