THE DETERMINATION OF SEX 219 



CRO ss 1 



(0 



GROSS. c? 



GAMETES 



ZYGOTES 



(2) 



FIG. 68. The formation of heterozygous grossulariata individuals, both 

 male and female, by crossing pure grossulariata males with lacticolor 

 females. 



CRO ss 2. 



(2) 



GROSS, d" 



GROSS.C? GROSS.C? 

 (/) (2) 



FIG. 69. The cross-breeding of heterozygous grossulariata individuals. 



LACT. 9 GROSS. 

 (5) (4) 



