Gametes BCeXBCG 

 C Be 



B 



ee 



ce 



Bce 



Bce 



Bce 



BeBe 



Icce 



ce 



Bce 



cce 



Bece 



Bece 



cece 



INHERITANCE OF THREE FACTORS IN THE GROUSE LOCUST 



Figure 15. The inheritance of color characters in the Grouse Locust is analogous to 

 crosses between whites and negroes. White skin color in man is believed to be due to a 

 single factor similar to that of the white Grouse Locust, BB (upper left-hand corner of 

 chart). Black pigmentation of the negro is controlled by two factors, as is the case with 

 the black Grouse Locust (lower right-hand corner). In crossing pure white individuals with 

 pure black, hybrids or "mulattoes" are produced that have the genetic formula BCfi (the four 

 figures running diagonally across from upper right to lower left.) When these "mulattoes" 

 are inbred, the result is that represented by the sixteen figures in this chart. There are nine 

 kinds of offspring, and all can be recognized. Of the sixteen, one will be pure white and 

 one pure black, as far as color factors are concerned, but other factors are independently 

 distributed. 



