has_part inheres_in abnormal mitotic spindle assembly checkpoint decreased rate of deactivation of mitotic spindle assembly checkpoint delayed inactivation of the SAC delayed inactivation of the mitotic spindle assembly checkpoint Checkpoint activation in a mutant usually implies that the mutation is causing problems that the checkpoint detects. decreased rate of mitotic spindle assembly checkpoint silencing 2016-11-02T13:49:32Z delayed inactivation of the mitotic SAC decreased rate of mitotic spindle assembly checkpoint deactivation midori FYPO:0005727 A cell cycle checkpoint phenotype in which deactivation of the mitotic spindle assembly checkpoint occurs more slowly than normal. 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. decreased rate of deactivation of mitotic cell cycle spindle assembly checkpoint reduced rate of deactivation of mitotic spindle assembly checkpoint