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DNA is double heilx and

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DNA is double heilx and
A. Right handed complementary and parallel
B. Right handed complementary and antiparallel
C. Without super coils
D. Always circular
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Correct Answer - b
b) the two strands (polynucleotide chains) of Double helix are antiparallel complementary. The sequence of nitrogenous bases in one determines the sequences of nitrogenous bases in the other.
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