TABLE 2.

Estimates of the average coefficient of dominance for segregating mutations and other parameters for a model of many mutations of low average effect

		Estimates of average h				% chromosomes
n	Mean effect	by.x	R	1/bx.y	hDL	QN	SL	D	VA	VD	VA/D
0 (0, 0)	—	0.07	0.15	0.28	0.09	88	12	0.169	0.0009	0.0005	0.005
50 (25, 25)		0.11	0.22	0.42	0.14	88	12	0.187	0.0017	0.0006	0.010
100 (50, 50)		0.14	0.26	0.51	0.17	86	14	0.210	0.0025	0.0008	0.012
150 (74, 76)		0.18	0.29	0.56	0.20	85	15	0.233	0.0033	0.0009	0.014
300 (149, 151)		0.27	0.35	0.64	0.26	82	18	0.300	0.0057	0.0013	0.019
10 (5, 5)		0.10	0.18	0.39	0.13	88	12	0.179	0.0021	0.0011	0.012
50 (23, 27)		0.21	0.27	0.58	0.23	85	15	0.226	0.0051	0.0017	0.023
100 (47, 53)		0.29	0.32	0.67	0.30	81	19	0.283	0.0092	0.0025	0.032
150 (70, 80)		0.34	0.35	0.71	0.34	75	25	0.332	0.0129	0.0032	0.039
10 (4, 6)		0.16	0.21	0.51	0.20	87	13	0.190	0.0046	0.0019	0.024
50 (21, 29)		0.32	0.32	0.78	0.38	73	27	0.318	0.0182	0.0061	0.057
100 (42, 58)		0.35	0.37	0.95	0.45	51	49	0.486	0.0384	0.0115	0.079
150 (63, 87)		0.35	0.40	1.21	0.48	34	66	0.647	0.0552	0.0168	0.085

Nonlethal mutational parameters: λ = 0.04, .

Other parameters and definitions are as in Table 1. The number of segregating nonpleiotropic mutations in the chromosome sample was 2396 ± 45. Ranges of SE: b_y.x, 0.002–0.005; R, 0.001–0.004; 1/b_x.y, 0.003–0.028; h_DL, 0.003–0.008; QN, 0.59–1.35; SL, 0.76–1.40; D, 0.005–0.010; V_A, 0.0000–0.0006; and V_D, 0.0000–0.0003.