has_participant has participant cell population proliferation The multiplication or reproduction of cells, resulting in the expansion of a cell population. cell proliferation This term was moved out from being a child of 'cellular process' because it is a cell population-level process, and cellular processes are restricted to those processes that involve individual cells. Also note that this term is intended to be used for the proliferation of cells within a multicellular organism, not for the expansion of a population of single-celled organisms. biological_process GO:0008283 cellular process Fungi thymidylate synthase (human) macrophage colony-stimulating factor 1 receptor (human) muscarinic acetylcholine receptor M4 (human) 5-hydroxytryptamine receptor 1A (human) muscarinic acetylcholine receptor M5 (human) androgen receptor (human) muscarinic acetylcholine receptor M1 (human) proto-oncogene tyrosine-protein kinase Src (human) muscarinic acetylcholine receptor M3 (human) alpha-1B adrenergic receptor (human) thrombopoietin receptor (human) interferon alpha/beta receptor 2 (human) 60S ribosomal protein L23a (human) mitogen-activated protein kinase kinase kinase 20 (human) ALK tyrosine kinase receptor (human)