Table 4.

Yield and distribution of micronuclei, following ex vivo irradiation of 0–5 Gy (6 MeV, X-ray). All sets of data were over dispersed and were fitted by a linear quadratic model (Y C + αD + βD²) using Dose Estimate software, version 5.2. D0, D1, D2, D3, D4, D5 and D6, represents binucleated cells with 0, 1, 2, 3, 4, 5 and 6 micronuclei, respectively.

Dose (Gy)	Cells scored	MN (No)	Distribution of Micronuclei (MN)							Yield (Y)	Relative Variance σ2/Y	Dispersion Index (u)	Poisson Distribution
			D0	D1	D2	D3	D4	D5	D6
0	5000	36	4966	32	2	0	0	0	0	0.007	0.02	5.28	OD
0.1	5000	72	4934	60	6	0	0	0	0	0.014	0.02	7.68	OD
0.25	5000	92	4918	72	10	0	0	0	0	0.018	0.02	10	OD
0.5	5000	174	4844	139	16	1	0	0	0	0.035	0.02	9.22	OD
0.75	5000	248	4777	201	19	3	0	0	0	0.05	0.02	8.84	OD
1	5000	400	4650	307	38	3	2	0	0	0.08	0.02	10.8	OD
2	5000	855	4275	622	79	21	3	0	0	0.171	0.02	10.2	OD
3	5000	1502	3809	933	213	38	6	1	0	0.3	0.02	9.83	OD
4	5000	2500	3146	1378	352	88	28	6	2	0.5	0.02	9.97	OD
5	5000	3477	2470	1881	424	168	44	10	3	0.695	0.02	3.69	OD