Figure 2

Bcd and Hb profiles expressed in two different distance measurements. (A and B) Average raw Bcd intensity profiles on the dorsal (blue) and ventral (red) sides of 28 wt embryos when measured as a function of projected distance x (A) or contour distance c (B) from the anterior. Error bars are shown for the profile from the dorsal side. In each panel, the inset shows a magnified view of the region surrounding the Hb expression boundary positions, which are marked with arrowheads for reference. (C and D) Average normalized Hb intensity profiles on the dorsal (blue) and ventral (red) sides of the same wt embryos when measured as a function of projected distance x from the anterior (C) or contour distance c (D). The Hb expression boundary positions on the two sides are marked with arrowheads.