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JCECE Medical JCECE Medical Solved Paper-2008

  • question_answer
    In a double stranded DNA, the sequence of bases in one strand is AGCTAAGC. What is the complementary sequence on the other strand?

    A)  TCGATTCG    

    B)  VCGAUUCG

    C)  AGCTAAGC    

    D)  CAUTAUCG

    Correct Answer: A

    Solution :

     DNA is composed of two strands wound round each other to form a double helix with the  double helix, the two DNA strands are organized in an antiparallel arrangement. The bases of the two strands form hydrogen bonds to each other. A (Adenine) pairs with T (Thymine) and G (Guanine) pairs with C (Cytosine). This is called complementary base pairing. So, if one strand of DNA contains AGCTAAGC bases then their complementary strand will contain TCGATTCG bases.


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