BHU PMT BHU PMT (Screening) Solved Paper-2006

  • question_answer
    Initiation codon is :

    A)  \[\text{UUU}\]                               

    B)  \[\text{UGA}\]

    C)  \[\text{AUG}\]                               

    D)  \[\text{UAG}\]

    Correct Answer: C

    Solution :

                     Initiation Codon: AUG which code for methionine (Met) is used as start signal in protein synthesis. It is the most common chain initiation codon. In prokaryotes, the codons GUG and UUG are also employed in instances as starts codons. Three triplets, UAA (ochre), UAG (amber) and UGA (opal) do not code for an amino acid and are called non-sense codons. Their function is to terminate the message for gene controlled protein synthesis- Non-sense codons are also called chain termination codons. \[\text{UUU}\] (uracil) codes for phenylalanine


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