Fig. 2. Hoxb1-LacZ nuclear reorganisation at E7.5 does not spread to flanking regions. Histograms showing the 3D positions of hybridisation signals for (A) the Lnp and (B) the Hoxd probe in nuclei from the EEM and the PS of wild-type (endogenous Hoxd, white bars) or transgenic (black bars) E7.5 embryos.