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NEET Biology Molecular basis of Inheritance / विरासत का आणविक आधार Question Bank Self Evaluation Test - Molecular Basis of Inheritance

  • question_answer
    If a double stranded DNA has 20% of cytosine, what will be the percentage of adenine in it?

    A) 20%                                         

    B) 40%

    C) 30%           

    D) 60%

    Correct Answer: C

    Solution :

    [c] The purines and pyrimidines are always in equal amounts as per chargaff?s rule. So, if cytosine is 20%, the thymine will be 30% and thymine is equal to adenine. Then the percentage of adenine will be 30%.


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