BHU PMT BHU PMT (Mains) Solved Paper-2008

  • question_answer
    Initiation codon is

    A)  \[\text{UUU}\]                               

    B)  \[\text{UGA}\]

    C)  \[\text{AUG}\]                               

    D)  \[\text{UAG}\]

    Correct Answer: C

    Solution :

                 Initiation codon is \[\text{AUG}\] which codes for methionine (Met), it is used as start signal in protein synthesis. It is the most common chain initiation codon. In prokaryotes, the codons \[\text{GUG}\] and \[\text{UUG}\] are also employed in instances as starts codons. Three triplets, \[\text{UAA}\] (ochre), \[\text{UAG}\] (amber) and \[\text{UGA}\] (opal) do no code for an amino acid and are called non-sense codons or chain termination codons. \[\text{UUU}\] (uracil) codes for phenylalanine,


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