INHERITANCE OF WHITE-SPOTTING IX RABBITS. 



15 



esis white is dark plus tan. Therefore, white crossed with Fi should 

 produce four kinds of zygotes: (a) dark and tan united witli white 

 (dark and tan), equivalent to homozygous white; (6) dark united 



No 

 50- 



40 



30- 



20- 



10- 







20- 



10- 



10- 



3T 



:^>rv^ 



0- 

 90- 



SO- 

 TO' 

 60- 



50- 



40- 



30- 



20- 



10- 



?^^^<Kq 



F,,DxT 



Fz. DxT 



50i 



4.0- 



30' 



20- 



10- 



20' 

 10- 



10- 



\^ 



^ 



20- 



10- 



10- 



20' 



10- 



\ 1'^ 



F,,DxT 



7^ 



31 



F, xT 



U^l^^^fe^ 



N 



"^r^ 



F, xO 



^^:i 



F, xW 



^ 



F^ F>S\ 



-f^ 



\' 



iL. 



Grade I 2 3 4 5 6 7 8 9 10 II I 2 3 4 5 6 7 6 9 10 11 12 13 14 15 16 17 



Text-figure 5. 



with white; (c) tan united with white; and (d) self (neither dark nor 

 tan) united with white. The observed modal values of these four 

 kinds of combinations are respectively, in terms of grades: (a) 10 



