Figure 5.Distribution and efficiency of Cre-loxP rrecombination in various transgenic mice examined at higher magnification.

A,C,E,G: X-gal and cresyl violet

B,D,F,H: higher magnification

A,B: R is reporter alone, no Cre recombinase to make blue

from Tsien, J. Z., et al. 1996. Subregion- and cell type-restricted gene knockout in mouse brain. Cell. 87:1317-1326