how does the hair on the thorax (upper back) of the mutant compare to a wild-type fly?
What is the different about the vein pattern between mutant and wild-type flies?
1. The hair on the thorax is controlled by Frizzled gene. Both loss of function and overexpression of Fz mutations result in an altered location for the assembly of the F-actin containing pre hairs in the pupal wings. This suggests that Fz functions to modulate the structure of the cytoskeleton
2. Vein pattern mutants show autonomy of phenotype in the center of the cell clone but partial correction at its borders. This local nonautonomy is not due to to the rescue of mutant cells by the surrounding wild-type cells. local cell-cell interactions must, therefore, be occurring in the course of normal pattern formation.