Table 3.
F2 littermates produced by crossing an F1 Cre+ male mouse with two Cre− female breeders
| Genotype | Female | Male | Total |
|---|---|---|---|
| Cre− | 0 | 12 | 12 |
| Cre+ | 20 | 0 | 20 |
|
| |||
| Total | 20 | 12 | 32 |
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