BLENDING INHERITANCE 



193 



than Mendelian alternative inheritance in which two or 

 more similar genes, duplicate or cumulative, are con- 

 cerned. One explanation instead of two or three, 



White 



Light 



Dark 



Black 



14641 



FIG. 43. Diagram to show the expectation of color and its fre- 

 quency in the cross between two mulattoes. 



therefore, is sufficient to dispose of an array of appar- 

 ently diverse phenomena. 



"We may therefore conclude," says Conklin, "that 

 the Mendelian law of heredity, especially as regards 

 segregation of inheritance factors, is of universal oc- 

 currence that there is no other type of inheritance." 



