These bonds are called phosphodiester bonds ... in the 5' to 3' direction when the molecule is synthesized. In double-stranded DNA, the molecular double-helix shape is formed by two linear ...

Ribonucleic acid (RNA) is a linear molecule composed of four ... to one another in a chain via chemical bonds called phosphodiester bonds. Unlike DNA, RNA is usually single-stranded.

TComparison of a single-stranded RNA and a double-stranded DNA with their corresponding nucleobases (Image: Wikimedia Commons, CC SA 3.0) The nucleotides are connected through phosphodiester bonds ...