Table 1.
Spontaneous and induced chromosome aberrations in wild-type and mus304 mutant larvae
| Genotype
|
X-raya
|
Aberration frequencyb
|
|---|---|---|
| +/+ | − | 0.7 (2/264) |
| mus3041/Df(3L)WR4 | − | 9.6 (28/291) |
| +/+ | + | 19 (49/262) |
| mus3041/Df(3L)WR4 | + | 60 (192/318) |
a
Larvae were treated with either 0 or 220 rads of X-rays. Four hours later, larval neuroblasts were squashed and examined for chromosome aberrations.
b
The average number of chromosome aberrations found per 100 metaphase cells. The total number of breaks scored over the total number of metaphase cells examined are indicated in parentheses.