What is the distance between the two strands | vedclass

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(A) According to the Watson and Crick model of $DNA$ structure,the $DNA$ molecule exists as a double helix.In this structure,the two polynucleotide st

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$20 \ \mathring A$

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(A) According to the Watson and Crick model of $DNA$ structure,the $DNA$ molecule exists as a double helix.In this structure,the two polynucleotide strands are coiled around a common axis.The diameter of the $DNA$ double helix is constant throughout its length.The distance between the two strands of the $DNA$ double helix is $20 \ \mathring A$ $(2 \ nm)$.

What is the distance between the two strands of $DNA$?

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