140 



THE BREEDING OF ANIMALS 



of the recessive. The recessive character is pure and will 

 breed true. The individuals possessing the dominant 

 character will be made up of one-third pure dominants 

 and two-thirds hybrid dominants in which the recessive 



Dominant 



Recessive 



G( green) 



Y(G) (fytrrf ye//ow) 



(pure ye/low) YY 2. Y(d) QG (pure green) 



YY YY 



FIG. 16. Diagram illustrating mendelian inheritance of yellow and 

 green characters in the garden pea. 



character will reappear in the next generation. This may 

 be more clearly shown in the preceding diagram (Fig. 16). 

 Mendel's hypothesis affirms that when animals or 

 plants of contrasted characters are bred together, these 

 characters do not blend in the germ-cells of the offspring. 



