The hydrophilic nature of DNA is due to the presence of : A)thymine base B)a number of hydrogen bonds C)phosphate group D)deoxyribose sugar
Option B) The phosphate groups on DNA are ionic and charged. Each phosphate group on the DNA backbone is one unit of negative charge (-1). Charged molecules attract water and are hydrophilic. DNA has two hydrophilic polar external backbones made of sugars and phosphate groups joined by ester bonds.
