has part has part process molecular_function gene product or complex activity biological process biological_process A process that emerges from two or more causally-connected macromolecular activities and has evolved to achieve a biological objective. Note that, in addition to forming the root of the biological process ontology, this term is recommended for the annotation of gene products whose biological process is unknown. When this term is used for annotation, it indicates that no information was available about the biological process of the gene product annotated as of the date the annotation was made; the evidence code 'no data' (ND), is used to indicate this.