Question

Why the distance between 2 polynucleotide chains inDNA remain almost constant?

Answer 1

The bases in two strands of DNA are paired through hydrogen bond (H-bonds) forming base pairs (bp). Adenine forms two hydrogen bondswith Thymine from opposite strand and vice-versa. ... As a result of these bonds, the distance between twopolynucleotide chains in DNA remains almost constant

Answer 2

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