RAJASTHAN PMT Rajasthan - PMT Solved Paper-1996

  • question_answer
    One DNA helix have :

    A)              10 nucleotides and \[3.4\,\overset{\text{o}}{\mathop{\text{A}}}\,\] in length

    B)              20 nucleotides and \[3.4\,\overset{\text{o}}{\mathop{\text{A}}}\,\] in length

    C)              20 nucleotides and \[34\,\overset{\text{o}}{\mathop{\text{A}}}\,\] in length

    D)              10 nucleotides and \[34\,\overset{\text{o}}{\mathop{\text{A}}}\,\] in length

    Correct Answer: A

    Solution :

    One double helix makes one full turn every \[34\,\overset{\text{o}}{\mathop{\text{A}}}\,\] and having 10 pair nucleotides. Distance between two paired nucleotides is \[3.4\,\overset{\text{o}}{\mathop{\text{A}}}\,\].


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