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Anonymous
Anonymous asked in Science & MathematicsBiology · 3 years ago

How does the order of bases on one polynucleotide chain determine the order of bases on the other chain?

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  • Anonymous
    3 years ago
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    As you know the DNA is a double helix and the 2 strands are held together by hydrogen bonds. The reason why the first chain determine what bases will be on the other one is because the bases have complementary bases (adenine with thymine and cytosinr with guanine) so if there is adenine in the first chain, it is obvious that the other chain will have a thymie base. Hope this helps

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  • 3 years ago

    By complementary base pairing between the two strands (A-T and G-C)

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  • 3 years ago

    The other chain is complementary and antiparallel to the first, using the Watson-Crick base pairing rules:

    o A pairs with T, with two hydrogen bonds

    o G pairs with C, with three hydrogen bonds

    o The 5' end of one chain is paired to the 3' end of the other chain

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