has_part inheres in part of qualifier abnormal mitotic spindle assembly checkpoint FYPO:0000168 midori abnormal mitotic cell cycle spindle assembly checkpoint 2011-04-13T03:34:54Z A cell cycle checkpoint phenotype in which the spindle assembly checkpoint of a mitotic cell cycle is abnormal. The mitotic spindle assembly checkpoint normally delays the metaphase/anaphase transition of a mitotic nuclear division until the spindle is correctly assembled and chromosomes are attached to the spindle. In a mutant, the checkpoint may fail to arrest or delay cell cycle progression under appropriate conditions, or the incidence or duration of arrest or delay may differ from wild type under any specified set of conditions. abnormal mitotic spindle assembly checkpoint activation abnormal regulation of mitotic metaphase/anaphase transition abnormal mitotic cell cycle checkpoint