Table 2.
Frequency of DAPr skin fibroblasts in ears of 129 × C3H hybrid mice
| Mouse | Ear | Total no. cells (×106) | CFE % | CFU (×104) | No. DAPr colonies | Frequency (×10−5) |
|---|---|---|---|---|---|---|
| 1505 | L | 4.3 | 1.5 | 6.5 | 7 | 10.9 |
| R | 4.5 | 1.1 | 5 | 16 | 32.3 | |
| 1518 | L | 3.4 | 1.7 | 5.8 | 7 | 12.1 |
| R | 3.6 | 1.2 | 4.3 | 5 | 11.6 | |
| 1521 | L | 3.2 | 1.6 | 5.1 | 7 | 13.7 |
| R | 4.3 | 1.5 | 6.5 | 16 | 24.8 | |
| 1515 | L | 3.7 | 1.8 | 6.7 | 14 | 21 |
| R | 4.1 | 1.8 | 7.4 | 0 | 0 | |
| 1519 | L | 3.3 | 2.3 | 7.6 | 3 | 4 |
| R | 2.9 | 1.4 | 4.1 | 11 | 27.1 | |
| 1512 | L | 2.6 | 1.5 | 3.9 | 7 | 17.9 |
| R | 3.2 | 2.3 | 7.4 | 0 | 0 | |
| 1534 | L | 2.8 | 1.4 | 3.8 | 0 | 0 |
| R | 2.9 | 1.3 | 3.9 | 2 | 5.1 | |
| Mean | 3.5 | 1.6 | 5.5 | 6.8 | 12.9 | |
| Median = 11.9 |
The CFE was estimated by plating 1 × 104 cells in a 100-mm dish (in duplicate for each ear) containing growth medium and 8 to 10 × 105 feeder cells. About 1 × 106 cells were plated in selection medium to recover DAPr colonies. L, left ear; R, right ear. CFU, colony-forming unit; CFE, colony-forming efficiency.