State PCS PYQPrelims 2025

BPSC – Combined Competitive Examination · प्रश्न 143

Which of the following is a nonsense codon?

  1. UAA
  2. AUG
  3. UUU
  4. UGC
उत्तर दाखवा आणि स्पष्टीकरण

उत्तर: (A) UAA

स्पष्टीकरण

The nonsense (stop) codons are UAA, UAG and UGA.

  • (A) बरोबर

    Correct: UAA (ochre) is a stop codon.

  • (B) चूक

    Wrong: AUG is the start codon (methionine).

  • (C) चूक

    Wrong: UUU codes for phenylalanine.

  • (D) चूक

    Wrong: UGC codes for cysteine.