part_of part of part of mitotic spindle organization spindle assembly mitotic spindle assembly GO:0090307 spindle assembly involved in mitosis tanyaberardini Mitotic bipolar spindle assembly begins with spindle microtubule nucleation from the separated spindle pole body, includes spindle elongation during prometaphase, and is complete when all kinetochores are stably attached the spindle, and the spindle assembly checkpoint is satisfied. biological_process 2010-04-09T11:31:28Z mitotic nuclear division