Expression of CNKN-term enhances the activated RAS1 rough-eye phenotype, whereas expression of CNKC-term suppresses activated RAS1 and activated RAF rough-eye phenotypes. Scanning electron micrographs of adult eyes of the following genotypes: (A) wild type, (B) sE-CNK/sE-CNK, (C) sE-CNKN-term/sE-CNKN-term, (D) sE-CNKC-term/sE-CNKC-term, (E) sev-RAS1V12/+, (F) sE-CNK/sev-RAS1V12, (G) sE-CNKN-term/sev-RAS1V12, (H) sE-CNKC-term/sev-RAS1V12, (I) sE-RAFTor4021/+, (J) sE-RAFTor4021/sE-CNK, (K) sE-RAFTor4021/sE-CNKN-term, and (L) sE-RAFTor4021/sE-CNKC-term. Anterior is to the right.