I. Representative image of a 7d Drosophila Dronc heterozygous intestines following a 16hr treatment with paraquat. Note the absence of large Su(H) positive, GFP (-) cells compared to (H). The white arrows indicate the enlarged area depicted in the insets. Genotypes: +/-: w1118, Su(H)GBE-LacZ; esg-Gal4 UAS-CD8-GFP / + ; TubG80ts UAS-Histone-RFP DroncKO / + -/-: w1118, Su(H)GBE-LacZ ; esg-Gal4 UAS-CD8-GFP / + ; TubG80ts UAS-Histone-RFP DroncKO / UAS-Flippase (BL8209) FRT Dronc-GFP-APEX FRT suntag-HA-Cherry 