Table 2.
No. of litters | Mating | No. of pups born | Expected nulls (% of pups born) | Actual nulls (% of pups born) | |
10 | Cre−;Cx45fl/fl × Cre+;Cx45fl/+ | 52 | 13 (25%) | 3 (6%) | |
6 | Cre−;Cx45fl/fl × Cre+;Cx45fl/fl | 30 | 15 (50%) | 5 (17%) | |
1 | Cre+;Cx45fl/fl × Cre+;Cx45fl/+ | 5 | 2.5 (50%) | 1 (20%) | |
Total | 17 | 87 | 30.5 (35%) | 9 (10%) |