UAS sequences regulate expression of mutated fz (amino acid replacements S554E, S560E).
abnormal planar polarity, with Scer\GAL4sev.PM181
ommatidium, with Scer\GAL4sev.PM181
The polarity of ommatidia is only weakly disturbed by fzEE.Scer\UAS; Scer\GAL4sev.PM181. No symmetrical ommatidia are seen in the eyes of these flies.