| codon, terminator | Any codon that signals the termination of genetic translation (translation, genetic) by triggering the hydrolysis of the aminoacyl bond connecting the completed polypeptide to the trna. Terminator codons (uaa, uag, and uga) do not specify amino acids. (12 Dec 1998) |
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| terminator | <molecular biology> DNA sequence at the end of a transcription unit that causes RNA polymerase to stop transcription. (13 Jan 1998) |
| terminator regions (genetics) | DNA sequences which signal the termination of transcription. (12 Dec 1998) |