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| Day | +/+ | +/- | -/- |
|---|---|---|---|
| E14.5 | 11 (11) | 28 (22) | 8 (11) |
| E17.5 | 10 (10) | 12 (20) | 5 (10) |
| P18-21 | 205 (205) | 305 (410) | 7 (205) |
The numbers of mice of the indicated genotypes obtained from heterozygous intercrosses are shown. Numbers in parentheses indicate the expected number based on predicted Mendelian inheritance. At least three litters were analyzed for each time point.
