TABLE 2.
Segregation of the Rosa3 (R3) allele in offspring of R3/+ parents.
| Sex of mouse | Result for straina:
|
||
|---|---|---|---|
| R3/R3 | R3/+ | +/+ | |
| C57BL/6Jb | |||
| Male | 10 | 20 | 12 |
| Female | 14 | 20 | 10 |
| Subtotal | 24 | 40 | 22 |
| DBA/2Jc | |||
| Male | 2 | 14 | 7 |
| Female | 5 | 15 | 13 |
| Subtotal | 7 | 29 | 20 |
| Total (both strains)d | 31 | 69 | 42 |
a
The distribution of sex among these offspring was determined by χ2 analysis.
b
C57BL/6J mice showed no significant effect of sex distribution (P > 0.25).
c
DBA/2J mice did show a significant effect when the results for animals from all the litters were combined (P = 0.01), but no effect was seen when mice from the last four litters were analyzed separately (P > 0.25).
d
No significant effect was observed when both data sets were combined and analyzed (P = 0.25).