kuzH143 mutants exhibit thinning of the longitudinal connectives and thickening of the commissures compared to controls. 50% of the segments examined in kuzH143 homozygous mutants display FasII axon crossing defects. No FasII axon crossing defects are seen in kuzH143/+. However kuzH143 heterozygotes do exhibit mild ectopic ap neuron crossing.
Homozygous clones induced in the thorax at 48-72 hours after egg laying are missing macrochaetae and microchaetae, and a tuft of macrochaetae develops in the area devoid of bristles. Homozygous clones induced in the dorsal part of the wing at 48-72 hours after egg laying give rise to thickening of the wing veins and nicks at the wing margin.