Table 1 Efficiency of zebrafish’s behavior rhythm formation.
|  | WT | zCry1a −/− | zPer2 −/− | zPer2 −/− zCry1a −/− |
|---|---|---|---|---|
Ratio of rhythmic animals exposed to 3 h light (%) | 81 | 90 | 80 | 27 |
Ratio of rhythmic animals exposed to 12 h light (%) | 83 | 81 | 81 | 63 |