: ECO_0000008http://purl.obolibrary.org/obo/ Create a prefix for http://purl.obolibrary.org/obo/ Hit Enter to save Double click to create a prefix | : IAO_0000115http://purl.obolibrary.org/obo/ Create a prefix for http://purl.obolibrary.org/obo/ Hit Enter to save Double click to create a prefix | A type of experimental evidence that is based on characterization of gene expression. |