1. Linear combination of @A00500@ on an atom. Hybrid orbitals are often used in organic chemistry to describe the bonding molecules containing tetrahedral (\(\mathrm{sp}^{3}\)), trigonal (\(\mathrm{sp}^{2}\)) and digonal (\(\mathrm{sp}\)) atoms.
    PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1122 [Terms] [Paper]
  2. The formation of @S05900@ duplexes of two DNA and/or RNA (complementary) strands via Watson-Crick @B00607@ used for locating or identifying @N04255@ sequences and to establish the effective transfer of @N04245@ material to a new @H02859@.
  3. The formation of a novel diploid organism either by sexual processes or by @P04917@ fusion.
PAC, 1992, 64, 143. (Glossary for chemists of terms used in biotechnology (IUPAC Recommendations 1992)) on page 156 [Terms] [Paper]