Figure 6.—

(A) DNA synthesis. Patterns of BrdU incorporation in eye imaginal discs. Left, ey-GAL4/+; right, ey-GAL4/UAS-D-DDB1(650)-dsRNA. The eye disc was stained with an anti-BrdU antibody. Arrows indicate the position of the MF. The anterior of the discs is on the left. The region of an extra S phase in some cells that are normally postmitotic is indicated by a dotted line. (B) Apoptosis. Detection of apoptotic cells in eye imaginal discs. Left, ey-GAL4/+; right, ey-GAL4/UAS-D-DDB1(650)-dsRNA. The apoptosis assay was carried out with terminal deoxynucleotidyl transferase. The anterior of the discs is on the left. Arrows indicate the position of the MF. The apoptotic cells are indicated by a dotted line.