Cold Spring Harbor Laboratory
Dna From the Beginning: The Rna Message Is Sometimes Edited
The discovery that mRNA is not an exact copy of the DNA is the topic of this section from the DNA Learning Center. This multimedia article includes animations, pictures, video, biographical information, and quiz questions that are...
Khan Academy
Khan Academy: Eukaryotic Pre M Rna Processing
Learn about the role of the chemical groups on the ends of the pre-mRNA called the 5' cap and poly-A tail. Also learn about splicing, introns, and exons.