Fig. 3. Ext1 and Ext2 expression during early postnatal development in mouse brain. (A) In situ hybridization for Ext1 in a postnatal day 8 mouse brain. Ext1 mRNA is most abundant in the cerebellum. Scale bar: 1 mm. (B) Ext1 and Ext2 have similar patterns of expression in postnatal day 8 mouse cerebellum. Scale bar: 1 mm. (C) Higher magnification views of the cerebellum reveal that both Ext1 and Ext2 are expressed by granule cells of the EGL and IGL as well as by Purkinje cells. E, EGL; M, molecular layer; P, Purkinje cell layer; I,IGL. Scale bar: 25 µm.
