MENDEL'S EXPERIMENTS 



It will be noticed that the true-breeding dominants 

 are to all the dominants in the proportion 1:3; and 

 the recessives, every one of which breeds true, are also 

 to all the dominants in the same proportion. Thus in 

 each of the two groups into which a set of hybrids' 

 progeny divides there are equal numbers of true- 

 breeding individuals. 



Among the foregoing results, three are to be noted, 

 namelv : 



4/ 



{a) In each of the seven cases, the hybrids' progeny 

 consist of two groups. 



(6) These two groups are to each other numerically in 

 the ratio 3:1. 



(c) The two groups in each pair contain equal numbers 

 of individuals which breed true. 



In addition to these experiments, Mendel carried out 

 others in which the original parents differed in two pairs 

 of characters in one set and in three pairs in another. 

 In that in which the parents differed in two pairs, one 

 parent had round seeds with yellow albumen while the 

 other had wrinkled seeds with green albumen. Thus 

 one parent carried two of the dominants dealt with in 



