FlyBase curator comment: this entry is used to capture phenotypic information when the particular allele (or allele combination) used by the author could not be determined but the context of the experiment suggests that the phenotype being described is some kind of loss of function.
Mitotic timing in mutant neuroblasts is faster than in wild type.
28.1% of anaphases have one or more severely lagging kinetochores in mutant neuroblasts.