Question:
Which of the following codon does NOT terminate protein biosynthesis?
Which of the following codon does NOT terminate protein biosynthesis?
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Stop codons: UAA, UAG, UGA.
Start codon: AUG (methionine).
Stop codons are also called nonsense codons.
Start codon: AUG (methionine).
Stop codons are also called nonsense codons.
Updated On: Aug 18, 2026
- UAA
- UAG
- UGA
- AUG
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
Stop codons terminate protein synthesis.
There are three stop codons in the genetic code.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the stop codons.
Step 3: Detailed Explanation:
Stop codons are:
- UAA
- UAG
- UGA
AUG is the start codon (methionine).
It does not terminate protein synthesis.
Thus, AUG is the codon that does NOT terminate protein biosynthesis.
Step 4: Final Answer:
AUG does NOT terminate protein biosynthesis.
Hence, the correct option is (D).
Stop codons terminate protein synthesis.
There are three stop codons in the genetic code.
Step 2: Key Formula or Approach:
No specific formula.
Need to know the stop codons.
Step 3: Detailed Explanation:
Stop codons are:
- UAA
- UAG
- UGA
AUG is the start codon (methionine).
It does not terminate protein synthesis.
Thus, AUG is the codon that does NOT terminate protein biosynthesis.
Step 4: Final Answer:
AUG does NOT terminate protein biosynthesis.
Hence, the correct option is (D).
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