YOSHIMARO TANA Iv A 
it is hypostatic. In F x moricaud yellow produced by crossing moricaud white 
with normal or plain yellow, a repulsion similar to that described in the 
preceding section occurs between M and Y factors. 
MymY x MymY 
F„ ex the cross moricaud white x normal yellow. 
(MPdymPQY x MPQymPÖY) 
Mor. yel. 
Mor. wh. 
Norm. yel. 
Norm. wh. 
Totals 
(MPQY) 
(MPQy) 
(mPQY) 
(mPQy) 
C 34-1 4 
82 
33 
45 
0 
160 
C 34-2' 1 4 
36 
35 
0 
143 
C 34-3'i4 
82 
5i 
55 
0 
188 
Totals 
236 
120 
*35 
0 
491 
F 3 ex the cross 
moricaud white x plain 
yellow. 
(MPQymPqy x MPQymPqY) 
Mor. yel. 
Mor. wh. 
Plain, yel. 
Plain, wh. 
Totals 
(MPQY) 
(MPQy) 
(mPqY) 
(mPqy) 
P 50- 1 ' 1-4 
• 89 
40 
49 
O 
178 
P 50-2'! 4 
64 
34 
20 
O 
118 
P 50-3' 1 4 
88 
44 
47 
0 
179 
A 40' 1 5 
59 
26 
23 
O 
108 
Totals 
300 
144 
139 
0 
583 
Grand totals 
536 
264 
274 
0 
1074 
(MymY x MymY) 
Expect. 
537-o 
268.5 
268.5 
0 
1074.0 
Ratio 
2 
: 1 : 
1 
The results apparently show occurrence of complete repulsion, at least in one 
of the sexes. Now let us test the crosses di heterozygotes x double re- 
cess ives. 
MymY £ x mymy $ 
Diheterozygous females mated to plain white males. 
(MPQymPqY ?- $ x mPqymPqy S $) 
