TABLE 2.
Forelimb defect percentages for backcross fetuses treated on GD 9.25 with 75 mg of RA per kilogram of body weight
| Laterality of limb defects (no. of fetuses)
|
||||||
|---|---|---|---|---|---|---|
| Axiality of paw defects (no. of fetuses)
|
Unilateral
|
|||||
| Cross | Preaxial | Postaxial | Pre- and postaxial | Right | Left | Bilateral |
| C57♀ × F1♂a | 27.7% (26)b | 40.4% (38)b | 30.9% (29) | 62.8% (59) | 5.3% (5) | 31.9% (30) |
| F1♀ × C57♂ | 67.7% (130)b | 11.5% (22)b | 20.8% (40) | 52.6% (101) | 8.9% (17) | 38.5% (74) |
a
One fetus was not included in axiality of paw defects because this fetus had absence of digit 3.
b
Significantly different between crosses, 2 × 2 χ2 test, P < 0.05.