Oct., I92I] EMERSON — ^ ABERRANT CHROMOSOME BEHAVIOR 
419 
the table had colorless aleurone, a C R ior group I and A C r for group 2, 
and those of the crosses shown in group 3 had red aleurone, A C R pr. 
In all, 38 aberrant seeds are reported, 12 of which involved A a Wx wx 
(fig. i,F),6 R r Wx wx (fig. i, E), and 20 Pr pr Wx wx. In all these cases. 
Table 2. Aberrant seeds of -maize from crosses of colorless waxy, a wx and r wx, by colored 
corneous, A R Wx, and of red waxy, pr wx, by purple corneous, Pr Wx 
Group 
Genes 
Concerned 
Pedigree No. 
of 9 Parent 
Approximate- 
Number of 
Normal Seeds 
Number of 
Aberrant Seeds, 
all Corneous 
I 
9061- 3 
5 
10183- 2 
8 
1 1 
14 
15 
12 ears 
300 
, 500 
500 
350 
52c 
280 
240 
4,610 
Colored and 
colorless 
2 
I 
2 
3 
I 
2 
I 
0 
1 otaJ 
19 ears 
7,100 
12 
2 
Total 
r wx X R Wx .... 
10187- 5 
6 
8 
9 
2 ears 
290 
440 
240 
190 
560 
I 
I 
2 
2 
0 
6 ears 
1,720 
6 
Purple and red 
3 
pr wx X Pr Wx . . 
9062- 2 
460 
I 
5 
470 
I 
10171- 4 
450 
I 
6 
650 
I 
9 
590 
I 
14 
560 
15 
540 
2 
18 
630 
2 
18 
470 
I 
23 
280 
I 
27 
470 
I 
10182- I 
390 
I 
2 
300 
5 
480 
2 
9 
390 
I 
10183- 7 
280 
I 
10187- 6 
440 
I 
8 
6 ears 
240 
I 
2,220 
0 
Total 
24 ears 1 
10,310 
20 
the recessive aleurone color of the female parent, namely, colorless in groups 
I and 2 and red in group 3, occurred in the aberrant part of the seed, and 
the dominant color, purple, of the male parent occurred in the normal part. 
But in every instance the endosperm was corneous throughout like that of 
