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Table 2 Spectrum of aberrations involving chromosome 1 and 2 after exposure to 60Co γ-rays as detected by FISH in metaphase cells.

From: Differential radio-sensitivities of human chromosomes 1 and 2 in one donor in interphase- and metaphase-spreads after 60Co γ-irradiation

Dose Total cell Reciprocal Terminal Total    Total Chromosome-1 Chromosome-2
(Gy) scored Translocation Translocation Translocation Dicentric Break   Aberration Aberration
0 674 1 (1) 2 3 0 (0) 3 6 4 3
0.5 372 3 (2) 7 10 1 (1) 8 19 10 12
1 340 10 (2) 15 25 2 (2) 12 39 18 25
2 361 33 (5) 42 75 9 (1) 26 110 44 72
3 337 67 (9) 97 164 14 (3) 72 250 116 146
4 339 80 (17) 117 197 30 (6) 88 315 162 176
5 216 60 (16) 141 201 36 (8) 78 315 157 182
  1. Values in parenthesis reflect the number of reciprocal or dicentric chromosomes formed between chromosome 1 and 2.