Table 1.
Chromosome numbers of colonies of Chinese hamster cells transformed with benzopyrene (B) in vitro and untreated controls
| Cell type | Metaphases, n | Number of chromosomes per cell | Frequency, %
|
||
|---|---|---|---|---|---|
| <22 | 22, n22 | >22 | |||
| B1 | 12 | 29, 35, 35, 35, 36, 38, 38, 39, 39, 40, 42, 42 | 0 | 0 | 100 |
| B2 | 8 | 21, 22, 22, 22, 37, 37, 37, 41 | 12 | 38 | 50 |
| B3 | 12 | 16, 18, 19, 21, 25, 30, 31, 32, 33, 36, 37, 37 | 33 | 0 | 67 |
| B6 | 13 | 22, 25, 25, 33, 34, 35, 37, 37, 41, 41, 41, 45, 68 | 0 | 8 | 92 |
| B8 | 18 | 13, 14, 16, 18, 20, 21, 21, 21, 22, 23, 24, 24, 24, 24, 25, 26, 26, 34 | 44 | 6 | 50 |
| B10 | 11 | 16, 18, 19, 20, 20, 21, 36, 36, 36, 36, 41 | 54 | 0 | 46 |
| B11 | 13 | 18, 25, 32, 33, 36, 38, 40, 41, 42, 44, 62, 62, 79 | 8 | 8 | 84 |
| B12 | 18 | 16, 16, 21, 21, 22, 22, 23, 23, 33, 35, 35, 36, 38, 39, 39, 40, 44, 45 | 22 | 17 | 61 |
| B14 | 24 | 11, 14, 17, 17, 17, 18, 18, 18, 21, 22, 22, 22, 22, 22, 22, 22, 23, 23, 23, 23, 24, 33, 38, 45 | 38 | 29 | 33 |
| B15 | 5 | 13, 17, 18, 23, 27 | 60 | 0 | 40 |
| CHE | 35 | 17, 17, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, 31, 44, 46 | 6 | 86 | 9 |