It is probably impossible to build this structure with a ribose sugar in place of the deoxyribose, as the extra oxygen atom would make too close a van der Waals contact. The previously published X ...

Later it was found that the sugar in nucleic acid can be ribose or deoxyribose ... as the genetic molecule. Scientists still needed to figure out this molecule's structure to be sure, and to ...

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 ...

It is a polymeric molecule composed of nucleotides, each containing a ribose sugar, a phosphate group ... and has a single-stranded structure. Comparison of a single-stranded RNA and a double-stranded ...