AP BIOLOGY

Detailed explanation-1: -Both DNA and RNA are built with a sugar backbone, but whereas the sugar in DNA is called deoxyribose (left in image), the sugar in RNA is called simply ribose (right in image).

Detailed explanation-2: -As a component of DNA, 2-deoxyribose derivatives have an important role in biology. The DNA (deoxyribonucleic acid) molecule, which is the main repository of genetic information in life, consists of a long chain of deoxyribose-containing units called nucleotides, linked via phosphate groups.

Detailed explanation-3: -DNA contains deoxyribose as the sugar component and RNA contains the sugar ribose.

Detailed explanation-4: -The nucleotides act as the building blocks of nucleic acids and help them to carry genetic information. Pentose sugar for RNA is ribose with 5 carbon atoms. Pentose sugar for DNA is deoxyribose.

Detailed explanation-5: -While DNA contains deoxyribose, RNA contains ribose, characterised by the presence of the 2′-hydroxyl group on the pentose ring (Figure 5).