InR⁵⁷⁴/InR⁵⁷⁴ somatic clones of terminal tracheal cells are smaller in size, but have a similar nucleus size and branch number to heterozygous controls in third instar larvae. Heterozygous neighboring stalk cells show a mild capacity for compensatory branching leading to a slight increase in the occurrence of two or more adherens junctions between the two cells, compared to one junction in wild-type controls.

InR⁵⁷⁴/InR⁵⁷⁴ somatic clones of tracheocytes in the dorsal trunk are also smaller in size and tend to be oval in shape rather than hexagonal, as observed for control wild-type clones.

sprout⁵⁷⁴ mutant terminal cells are tiny, but the tracheal cells are nevertheless robustly branched.

sprout⁵⁷⁴ mutant eye cell clones,in an EGUF/hid eye assay (where forced expression of a cell death gene in the eye imaginal disc eliminates wild-type cells, leaving the adult eyes to develop almost entirely from clones of homozygous mutant cells), exhibit a growth defect.