structural gene n.
A gene that determines the amino acid sequence of a specific protein or peptide.
noun 1. the branch of geology dealing with the structure and distribution of the rocks that make up the crust of the earth. Also called tectonics. Compare structure (def 7a).
noun 1. iron shaped for use in construction.
- Structural isomer
structural isomer Any of two or more compounds with identical chemical formulas, such as propyl alcohol and isopropyl alcohol, that differ structurally in the sequence in which the atoms are linked. Structural isomers do not exhibit the same chemical behavior. Compare stereoisomer.
noun, Chemistry. 1. See under isomerism (def 1). noun 1. Chemistry. the relation of two or more compounds, radicals, or ions that are composed of the same kinds and numbers of atoms but differ from each other in structural arrangement (structural isomerism) as CH 3 OCH 3 and CH 3 CH 2 OH, or in […]