Start at the Learn.Genetics Firefly overview.

Core (AHL to follow):

Click on the shadowed images for animations and tutorials.

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Essential Biology: 3.5 Transcription and Translation (SL/ Core Only)

Click4Biology page

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More basic animations:

Learn.Genetics @ Utah

Transcribe and Translate (good, basic, interactive)

How do fireflies glow? (puts it in context)

University of Nebraska:

Protein Synthesis overview