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  9. Q90

BPSC (Bihar PCS) 2025 · Question 90 of 145

Which of the following is a non-sense codon?

Miscellaneous

  1. AAUG
  2. BUAACorrect
  3. CUUU
  4. DUGC

Answer: B. UAA

Explanation

UAA is a nonsense (stop) codon that signals the end of protein synthesis. AUG: This is the start codon.

Source: 71st BPSC CCE Prelims 2025 (Set H)

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