42 



MUTATIONS 



<n 



UJ 



-I 



<-> 10 



Q 



UJ 



m 

 < 



o 



iio-2 



H 



a: 

 o 

 a. 

 O 

 a: 

 a. 



o 



z 



u"0 

 q: 



10 



STAGE 



Figure 12. Isotope dilution curves with anti-B 

 Key: 



Atwood: Oh, yes, 70 per cent penetrance of the A2, if you look at it 

 that way. 



Glass: But you have the same A2 allele in the ones that are mosaic 

 and in the ones that are not mosaic. 



Atwood: You see, these (A1A3) can't be mosaics in the sense that 

 these (A3B) are because they have an Ai, so most of their cells are 

 going to be phenotypically Ai, anyway. 



