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Codons that terminate protein synthesis are called nonsense codons or:
AStop codons
BStart codons
CSense codons
DAnticodons
Answer & Solution
Correct answer: A. Stop codons
1. Not every codon adds an amino acid.
2. Three of the 64 codons terminate protein synthesis.
3. They release the polypeptide from the translation machinery.
4. These triplets are called nonsense codons, or stop codons.
_Source: OpenStax Biology 2e (CC BY 4.0), Ch 15 'Genes and Proteins', sections 15.1-15.5_
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