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Q. The hydrophilic nature of DNA is due to the presence of
Explanation by: Ruchi Sharma
a number of hydrogen bonds.The phosphate groups on DNA are ionic & charged. Charged molecules attract water & are hydrophilic. Each phosphate group on the DNA backbone is one unit of negative charge (-1). DNA has two hydrophilic polar external backbones made of sugars & phosphate groups joined by ester bonds.
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