Comparison of a single-stranded RNA and a double-stranded DNA with their corresponding nucleobases. (Image: Wikimedia Commons, CC SA 3.0) The most common type of base pairing is the Watson-Crick base ...

Base pairs are at the heart of molecular biology information. Recognized ever since their discovery by Watson and Crick in 1953, the base pair provides, among other things, rules for copying DNA, ...