THE DETERMINATION OF SEX 



219 



Cro ss 1 



GAMETE5 



Zygotes 



1-5 



Gross, d* 



(2) 



(0 

 Gross cf 



Gross. ^ 

 (4) 



Fig. 68. — The formation of heterozygous grossulariata individuals, both 

 male and female, by crossing pure grossulariata males with lacticolor 

 females. 



Cro 5s £ 



(2) 



Gross. cf 



GRoss.d GRoss-d* Lact. 9 Gross, (f 



(/) (Z) (5) (4) 



Fig. 69. — The cross-breeding of heterozygous grossulariata individuals. 



