Heredity — Genetics 689 



PARENTS > 



Round-yellow 

 (RRYY) 



OFFSPRING (Fj) 



X 



1 



Wrinkled- green 

 (rryy) 



(F^)^ 



/ 



W 



Q / 

 > S 



M 

 W 



Round-yellow 

 (RrYy) 



Fig. 338. — Dihybrid cross of peas showing gene content of each individual. The 

 genes for the various members of each generation are shown. When two similai 

 Fi individuals are crossed, the results are shown in the checkerboard (F2). 



