130 



If the above assumption is correct, the Lot M. 7. '10 must have been 

 MmYy x MmYy, mid produced the following gametes: 



7 MY, 1 My, 1 mY, 7 my. 

 By recombination of these gametic forms, we should obtain : 

 49 MYMY + 14 MYMy + 14 MYmY | 

 98 MYmy + 2 MymY / 



1 MyMy 4- 14 Mymy 



1 mYmY + 14 mYmy 



49 mymy 



F, phenotypes. 



Four matings of the F, plain white gave 774 F 2 individuals altogether, 



