18 A MANUAL OF MENDELISM 



carried by the ptire kind having wrinkled seeds with 

 green albumen and those carried by the hybrids : 



By the pure kind By the hybrids 

 w* R 



.w w. 



•g Y. 



•g g- 



If the hybrids contain equal numbers of these two 

 pairs of materials, then equal numbers of the combina- 

 tions Rw and ww, and Yg and gg should be produced. 

 But, as the two sets of materials are distributed 

 independently and simultaneously, the combinations 

 formed by one set should be distributed equally among 

 those formed by the other, thus : 



Rw Rw WW WW 



Yg gg Yg gg 



Round with Round with Wrinkled with Wrinkled with 



yellow green yellow green 



albumen albumen albumen albumen 



The actual numbers found of each of these kinds of 

 seeds were : 



* For ease and ace uraey in manipulation it is well to represent the 

 pure kind as containing the same number of lines of materials as the 

 hybrid. 



