has_part mitotic spindle collapse without elongation during anaphase B broken mitotic spindle without elongation during anaphase B mitotic spindle collapse without elongation during anaphase B during vegetative growth midori FYPO:0006172 spindle collapse without elongation during mitotic anaphase B 2017-08-07T12:04:25Z spindle collapse without elongation during anaphase B during mitotic cell cycle mitotic spindle collapse without extension during anaphase B mitotic spindle breakage without elongation during anaphase B A cell phenotype in which a short mitotic spindle assembles and elongates during prophase, but does not elongate further during anaphase B and eventually collapses. abolished mitotic spindle elongation during anaphase B mitotic spindle collapse