118 MODES OF RESEARCH IN GENETICS 



PEDIGREE TABLE U (Hypothetical) 

 To Illustrate the Breeding of Parent X Offspring 



Generation number . 



n 

 J 



7 



.9 

 'd 



7 



^9 

 'd 



d 



e 



a 



s 



generation 1. Therefore it will not be counted 

 a second time in generation 2, and we have 



^ 100(4-3) ^ 

 4 



