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B
Right hand
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C
Parallel
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D
All the above
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Solution
The correct option is B Right hand
DNA has a double helical structure where the two strands are tightly coiled over each other. B- DNA has two antiparallel strand that runs opposite one from 5'-3' and another from 3'-5' and wound around the same axis that forms the right-handed helix. It consists 10 base pair in each coil with the major and minor groove.