152 



INHERITANCE IN GUINEA-PIGS. 



TABLE 112. 



Cross 51 . Rough A X smooth (tri) ; smooth with one or both parents partial rough. 

 Rrss X rrSS = RrSs + rrSs (1 C : 1 Sm). 

 Rrss X rrSs = Rrss+ RrSs + 2rr(lA:lC:2 Sm). 

 Rrss X rrss = Rrss + rrss (1 A : 1 Sm). 



TABLE 113. 



Cross 52. Rough 1 C, D (tri) X rough C (tri). 

 RrSa X RrSs = 3 Rss + 6 RSs + 3 RSS + 4rr(3A:6C:3E:4 Sm). 



1 AII rough C except 3724. 



TABLE 114. 

 Cross 53. Rough C, D (tri) X rough E (tri). 



RrSs X RRSS= RSs + RSS (1 C: 1 E). 

 or RRSsX RrSS = RSs + RSS (1 C : 1 E). 

 or RrSa X RrSS = 3 RSs + 3 RSS + 2 rr (3 C :3 E : 2 Sm). 



