GENES MODIFYING NOTCH. 



373 



forked stock, that stock is not suited to test the location of the regular 

 modifier for short Notch. The experiment was not carried further. 



Reciprocally, when the male of short-Notch stock was crossed to 

 selected female, the FI Notch females were atavistic, indicating that 

 the Notch gene of the selected stock has not itself changed, and that 



FIG. 96. 



