Table 1. The survival of eel-1 mutants is hypersensitive to treatment with IR.

	Embryonic lethality (%)
Genotype	0 Gy	60 Gy	120 Gy
Wild type	0.5±0.3	30.2±4.0	55.1±7.1
eel-1(ok1575)	12.6±0.1	52.7±3.3	79.3±1.8
eel-1(zu462)	9.0±0.7	57.6±4.1	72.8±1.6
clk-2(qm37)	4.5±1.4	58.7±7.7	81.3±4.9

Synchronized L4 animals were irradiated with the indicated dose and eggs laid 12–18 h later were counted. Unhatched embryos were counted 1 day later to quantify embryonic lethality. Data represent mean±S.E.M. of three independent experiments