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CET Karnataka Medical CET - Karnataka Medical Solved Paper-2006

  • question_answer
    The sequence of nitrogen bases in a particular region of the non-coding strand of a DNA molecule was found to be CAT GTT TAT CGC. What would be the sequence of nitrogen bases in the mRNA that is synthesized by the corresponding region of the coding strand in that DNA?

    A)  GUACAAAUAGCC

    B)  GTACAAATAGCC

    C)  CAUGUUUAUCGC

    D)  CAAGAATAUGCC

    Correct Answer: C

    Solution :

    The non-coding strand of the DNA molecule has the following base sequence CAT GTT TAT CGC Hence, The coding strand will have the following base sequence GTACAAATAGCG Upon transcription the mRNA strand will have the sequence CAU GUU UAU CGG [Note : As per wobbles hypothesis the third codon can be either C or G]


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