Biology / Unit 6 Bio 1293 short lesson, about 20 seconds
Translation Termination
Captions available
The idea
Translation termination occurs when a stop codon reaches site A, where a release factor, not a tRNA, binds and frees the protein.
In practice
A release factor recognizes stop codon UAA, UAG, or UGA at site A and triggers hydrolysis, releasing the finished polypeptide.
Where people slip
No tRNA carries an anticodon matching a stop codon — a release factor's shape mimics tRNA closely enough to bind.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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