Fig. 6. Monoallelic expression is cell-type specific in vivo.

a Z-stack of confocal images showing representative cells with nascent RNA-FISH signals for Grik2 and App, in hippocampal sections of adult inbred mice. Scale bar 10 µm. b Quantification of nascent RNA-FISH in pyramidal neurons of CA1 and CA3, in the three female inbred mice analysed. Chi-squared test (see Methods); n is the number of cells analysed for each gene and each region.