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NEET Biology Molecular basis of Inheritance / विरासत का आणविक आधार Question Bank Gene Regulation and Genetic Code

  • question_answer
    The possibility of three letter genetic code was pointed out by

    A) Khorana

    B) Gamow

    C) Holley

    D) Nirenberg

    Correct Answer: D

    Solution :

    Nirenberg and Matthaei used artificially synthesized mRNA in a cell free system. When they added a synthetic mRNA consisting of only one base uracil, the protein synthesized consisted only of one amino acid phenylalanine. It suggests that triplet UUU codes for the amino acid phenyl alanine.


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