From: Contrasting effects of Deadend1 (Dnd1) gain and loss of function mutations on allelic inheritance, testicular cancer, and intestinal polyposis
Cross
No. Dnd1+/+
No. Dnd1+/KO *(expectations)
% expected number
Litter size
Intercross
120
162 (240)
67.5
5.6±0.5 n=18
Backcross:maternal
110
107 (110)
97.2
5.8±0.4 n=30
Backcross:paternal
100
96 (100)
96
5.2±0.4 n=19