S8 



Outline of Genetics 



cross between nos. 14 and 15, both of which are het- 

 erozygotes, would produce 3 white to i red. These 



Fig. g. — Diagram illustrating behavior of complementary factors 

 in cross between red-grained and white-grained corn. R and C must 

 both be present to produce red-grained 



corn. 



illustrations show how differently the same phenotype 

 may behave in inheritance. In each case 2 whites were 

 crossed, that is, the same phenotypes, but 3 different 



