Answer:-
The sides of the DNA molecule, also called the backbone, are made of alternating sugar (deoxyribose) and phosphate groups. These form a strong structural support for the double-helix shape. The sugars are linked to nitrogenous bases (A, T, C, G), which pair in the center like rungs on a ladder. The phosphate groups create strong covalent bonds with the sugars, ensuring stability. This backbone protects the genetic code and helps DNA replicate accurately. Without this structure, DNA wouldn’t be able to carry and transmit genetic information essential for life. It’s like a strong ladder holding everything together!
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