EOG84J4ZN GO:0007099 1/86 centriole replication biological_process "The cell cycle process in which a daughter centriole is formed perpendicular to an existing centriole. An immature centriole contains a ninefold radially symmetric array of single microtubules; mature centrioles consist of a radial array of nine microtubule triplets, doublets, or singlets depending upon the species and cell type." [GOC:kmv, ISBN:0815316194] EOG84J4ZN GO:0005813 1/86 centrosome cellular_component "A structure comprised of a core structure (in most organisms, a pair of centrioles) and peripheral material from which a microtubule-based structure, such as a spindle apparatus, is organized. Centrosomes occur close to the nucleus during interphase in many eukaryotic cells, though in animal cells it changes continually during the cell-division cycle." [GOC:mah, ISBN:0198547684] EOG84J4ZN GO:0005814 1/86 centriole cellular_component "A cellular organelle, found close to the nucleus in many eukaryotic cells, consisting of a small cylinder with microtubular walls, 300-500 nm long and 150-250 nm in diameter. It contains nine short, parallel, peripheral microtubular fibrils, each fibril consisting of one complete microtubule fused to two incomplete microtubules. Cells usually have two centrioles, lying at right angles to each other. At division, each pair of centrioles generates another pair and the twin pairs form the pole of the mitotic spindle." [ISBN:0198547684] EOG84J4ZN GO:0051297 1/86 centrosome organization biological_process "A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of a centrosome, a structure comprised of a pair of centrioles and peri-centriolar material from which a microtubule spindle apparatus is organized." [GOC:ai, GOC:dph, GOC:jl, GOC:mah] EOG84J4ZN GO:0051298 1/86 centrosome duplication biological_process "The replication of a centrosome, a structure comprised of a pair of centrioles and peri-centriolar material from which a microtubule spindle apparatus is organized." [GOC:ai] EOG84J4ZN GO:0010457 1/86 centriole-centriole cohesion biological_process "The process in which the two centrioles within a centrosome remain tightly paired." [GOC:dph, GOC:tb] EOG84J4ZN GO:0007052 1/86 mitotic spindle organization biological_process "A process that is carried out at the cellular level which results in the assembly, arrangement of constituent parts, or disassembly of the microtubule spindle during a mitotic cell cycle." [GOC:mah]