AIIMS AIIMS Solved Paper-2015

  • question_answer
    What would happen, if in a gene encoding a polypeptide of 50 amino acids, 25thcodon (UAU) is mutated to UAA?

    A) A polypeptide of 49 amino acids will be formed

    B) A polypeptide of 25 amino acids will be formed

    C) A polypeptide of 24 amino acids will be formed

    D) Two polypeptides of 24 and 25 amino acids will be formed

    Correct Answer: C

    Solution :

    If in a gene encoding a polypeptide of 50 amino acids. \[\text{2}{{\text{5}}^{\text{th}}}\]codon (UAU) is mutated to UAA. A polypeptide of 24 amino acids will be formed. Since, UAA is a termination codon, no further polypeptide will be formed.


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