Figure 4.

DNA (−8.4 to +0.35 kb) from the vnd/NK-2 gene confers the vnd/NK-2 pattern upon β-gal gene expression in transgenic fly lines. Embryos were stained for β-gal by using antibody against β-gal protein. (A) Stage 6 or 7, ventral view. (B) Stage 8, side view. (C) Stage 9, ventral view. (D) Stage 10, ventral view. (E) Stage 11, ventrolateral view. (F) Higher magnification of the embryo in E. (G) Stage 12, ventral view. (H) Higher magnification of the embryo in G. Embryos shown in the panels are all from the same transgenic fly line except the one in the D, which is from a different transgenic fly line.