base pairing
The specific @[email protected] between two complementary strands of @[email protected] that results from the formation of hydrogen bonds between the base components of the @[email protected] of each strand: A=T and G=C in @[email protected], A=U and G=C (and sometimes G=U) in @[email protected] (the lines indicate the number of hydrogen bonds). Single-stranded nucleic acid molecules can adopt a partially double-stranded structure through intrastrand base pairing.
PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 147 [Terms] [Paper]
PAC, 1993, 65, 2003. (Glossary for chemists of terms used in toxicology (IUPAC Recommendations 1993)) on page 2017 [Terms] [Paper]