Nucleotides themselves are composed of three distinct parts: sugar, phosphate, and a nitrogenous base ... important types of pentose sugar are ribose and deoxyribose, and as you can probably ...

and several nitrogen-containing bases. Later it was found that the sugar in nucleic acid can be ribose or deoxyribose, giving two forms: RNA and DNA. In 1943, American Oswald Avery proved that DNA ...

Their model consists of three intertwined chains, with the phosphates near the fibre axis, and the bases on the ... this structure with a ribose sugar in place of the deoxyribose, as the extra ...

Additionally, RNA contains ribose sugars rather than deoxyribose sugars ... base consists of a ribose sugar, a phosphate group, and a nitrogenous base. Adjacent ribose nucleotide bases are ...

The structure of a nucleotide, consisting of a phosphate group (left), a pentose sugar molecule (middle), and a nitrogenous base (right). (Image: Public Domain) Ribonucleotides are the building blocks ...