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Survival of Usf2 homozygous mutants
| Pups | Total no. | No. Usf2(+/+) | No. Usf2(+/−) | No. Usf2(−/−) |
|---|---|---|---|---|
| Born | 354 | 91 (26%) | 187 (53%) | 76 (21%) |
| Died within 2 days | 65 | 13 | 10 | 42 |
| Survived past weaning | 277 | 75 | 171 | 31 |
All pups from 43 litters produced by 14 breeding pairs of Usf2 heterozygous mice were genotyped by tail DNA analysis. Of the 31 Usf2(−/−) mice that survived past weaning, 15 were male and 16 were female.
