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What are the three dominant classes of RNA molecules in cells? Which one of these three...

What are the three dominant classes of RNA molecules in cells? Which one of these three has the longest RNA molecules, and which has the shortest RNA molecules?

How are RNA molecules synthesized in cells? Draw the chemical structure of a single elongation event. Explain how the synthesis of RNA molecules is terminated in bacterial cells. What modifications are added to an mRNA in eukaryotes after the mRNA has been transcribed?

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