Term: caudal fin chromosome
Name: caudal fin
Synonyms: tail, tail fin
Definition: Fin that is the most posterior median fin. It is composed of a complex of three modified centra and modified neural and hemal arches and spines.
Ontology: Anatomy Ontology [ZFA:0001058]

Name: chromosome
Synonyms: chromatid, interphase chromosome, prophase chromosome
Definition: A structure composed of a very long molecule of DNA and associated proteins (e.g. histones) that carries hereditary information.
Ontology: GO: Cellular Component [GO:0005694]    QuickGO    AmiGO