DUMET Medical DUMET Medical Solved Paper-2006

  • question_answer
    Stop codons are:

    A)  AUG, GUG    

    B)  UAA, UGA, UAG

    C)  UAC, UGG    

    D)  AGU, AGA, UAC

    Correct Answer: B

    Solution :

    Three codons UAG, UAA and UGA are stop codons or nonsense codons. They do not code for any amino acids. AUG works as initiation codon in eukaryotes and prokaryotes. In rare cases GUG also serve as initiation codon in bacterial protein synthesis. UAC coded for tyrosine, UGG coded for tryptophan, AGU coded for serine and AGA coded for argenine.


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