Term Name CTO id ploidy morphology Cellular component size germ line nucleation process process comment lineage organism Organism Comment potentiality anatomy Cell surface protein Comments CD8-positive, alpha-beta immature T cell CL:0000811 diploid pleiomorphic <10.0 n/a 1 GO:2456 ; GO:0021700 mesoderm animal only Terminally differentiated circulatory system CD marker CD-8 Any additional comment about this term sperm CL:0000019 sperm cell (sensu Viridiplantae) CL:0000366 egg CL:0000025 egg cell CL:0000254 nurse cell CL:0000026 primary spermatocyte CL:0000656 secondary spermatocyte CL:0000657 male germ line stem cell (sensu Nematoda and Protostomia) CL:0000087 male germ line stem cell (sensu Vertebrata) CL:0000089 spermatogonium CL:0000020 microspore CL:0000252 spermatid CL:0000018 central cell CL:0000278 functional megaspore CL:0000433 degenerate megaspore CL:0000475 secondary oocyte CL:0000655 primary oocyte CL:0000654 oogonial cell CL:0000024 female germ line stem cell (sensu Nematoda and Protostomia) CL:0000088 female germ line stem cell (sensu Vertebrata) CL:0000090 antipodal cell CL:0000537