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How many of the 64 codons terminate protein synthesis?
ATen of them
BTwenty of them
CThree of them
DOne of them
Answer & Solution
Correct answer: C. Three of them
1. The stop signals are a small minority of the code.
2. Most codons instruct the addition of a specific amino acid to a polypeptide chain.
3. Three of the 64 codons terminate protein synthesis.
4. They release the polypeptide from the translation machinery.
_Source: OpenStax Biology 2e (CC BY 4.0), Ch 15 'Genes and Proteins', sections 15.1-15.5_
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