In double helix of DNA, the two DNA strands are?

Coiled around a common axis

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Coiled around each other

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Coiled differently

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Coiled over protein sheath

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Solution

The correct option is A Coiled around a common axis
A. Coiled around a common axis
As per the Watson-Crick double helical model, DNA is composed of two complementary polynucleotide chains which are anti-parallel to each other. Both the strands of DNA are held together by Hydrogen bonds and coiled around a common axis.

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