egg chorion, with BicDR26
embryonic neuroblast & spindle, with BicDR26, Df(2L)TW119
embryonic neuroblast & spindle, with Df(2L)TW119/BicDR26
13% of neuroblast mitoses are more than 45o off-axis in embryos derived from BicDHA40.T:Ivir\HA1 ; BicDR26/Df(2L)TW119 females mated to BicDR26/+ males (in contrast to wild type where all neuroblast divisions are oriented within 45o of the apicobasal axis). The average length of metaphase spindles in these mutant neuroblasts is significantly less than normal.