drk cDNA under control of both an Hsp70 promoter and sevenless enhancer.
Fully complements the suppression of the sev::tor13D.hs.sev extra R7 phenotype by drkR1/+. sev::tor13D.hs.sev; drkR1/+ flies have 33% ommatidia with multiple R7 cells as opposed to 95% for sev::tor13D.hs.sev; drkR1/+;drkhs.sev flies.