what sugar is found in dna

The sugar found in DNA is deoxyribose. It is a five-carbon sugar (pentose) that forms part of the backbone of the DNA molecule, alternating with phosphate groups. This sugar differs from the ribose found in RNA by lacking one oxygen atom on the second carbon. The full name is 2-deoxyribose, and it connects to nitrogenous bases and phosphate groups to form nucleotides, which are the building blocks of DNA.