Which stage of translation occurs when a stop codon arrives in the A site?

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Multiple Choice

Which stage of translation occurs when a stop codon arrives in the A site?

Explanation:
Stop codons signaling the end of a protein are recognized when they appear in the A site of the ribosome. At this point, no tRNA can pair with the stop codon, so release factors bind to the A site instead. These factors trigger the hydrolysis of the bond between the polypeptide and the tRNA in the P site, releasing the completed polypeptide. After release, the ribosome dissociates into subunits and translation ends. This is why termination is the stage that occurs when a stop codon arrives in the A site.

Stop codons signaling the end of a protein are recognized when they appear in the A site of the ribosome. At this point, no tRNA can pair with the stop codon, so release factors bind to the A site instead. These factors trigger the hydrolysis of the bond between the polypeptide and the tRNA in the P site, releasing the completed polypeptide. After release, the ribosome dissociates into subunits and translation ends. This is why termination is the stage that occurs when a stop codon arrives in the A site.

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