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Why the distance between two polynucleotide …

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Why the distance between two polynucleotide chains in DNA remains almost constant ?
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Meghna Thapar 5 years ago

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

 

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