AP BIOLOGY

Detailed explanation-1: -RNA contains ribose (pentose) sugar.

Detailed explanation-2: -ribose, also called D-ribose, five-carbon sugar found in RNA (ribonucleic acid), where it alternates with phosphate groups to form the “backbone” of the RNA polymer and binds to nitrogenous bases.

Detailed explanation-3: -Unlike DNA, RNA is usually single-stranded. Additionally, RNA contains ribose sugars rather than deoxyribose sugars, which makes RNA more unstable and more prone to degradation.

Detailed explanation-4: -Unlike DNA, RNA in biological cells is predominantly a single-stranded molecule. While DNA contains deoxyribose, RNA contains ribose, characterised by the presence of the 2′-hydroxyl group on the pentose ring (Figure 5). This hydroxyl group make RNA less stable than DNA because it is more susceptible to hydrolysis.

Detailed explanation-5: -Solution : RNA has ribose (as sugar) and uracil (a pyrimidine base). DNA has deoxyribose (as sugar) and does not contain uracil. Instead it contains thymine (as a pyrimidine base).