Allelic non-complementation between Ptch1DL and Ptch1tm1Zim at E18.5.
Whole mount images of wild-type (a) and two Ptch1DL/Ptch1tm1Zim embryos (b, c) in lateral (a, b) or ventral (c) view. In the mutant embryos, the kinked tail (white arrow), omphalocele (white arrowhead) and abnormal skull shape (red arrow) are illustrated.