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PROTEIN SYNTHESIS Transcription

1. An enzyme (RNA polymerase) attaches to the DNA
2. The hydrogen bonds between paired bases break, and the DNA molecule unwinds.
3. RNA nucleotides with bases complementary to those on the template (antisense) strand of the DNA pair up and bond to form an
mRNA molecule…

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POST-TRANSCRIPTIONAL CHANGE

Between transcription and translation, mRNA is often edited, with some sections being removed and other sections spliced together.
Non-coding introns are removed. The sequences that are expressed are called extrons. Therefore this means that several proteins can be
formed from one length of mRNA if it is spliced…

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