Table 1.

Deletion and duplication rates. The first column contains the name of the organism, the second column – N_genes, the number of genes in its genome, the third column is the value of the exponent γ in the best fit with p^-γ to N_a(p) in the region II. The fourth, fifth, sixth and seventh columns are correspondingly the ratios $r_{\text{dup}}^{\ast }/\overline{\mu }$, r_dup/$\overline{\mu }$, r_del/$\overline{\mu }$, and $r_{\text{del}}^{\ast }/\overline{\mu }$ defined and measured as described in the text.

Organism	Proteome size	γ	$r_{\text{dup}}^{\ast }/\overline{\mu }$	rdup/$\overline{\mu }$	rdel/$\overline{\mu }$	$r_{\text{del}}^{\ast }/\overline{\mu }$
H. pylori	1590	3.1	0.73	0.032	0.16	67
E. coli	4288	4.4	1.37	0.038	0.10	64
S. cerevisiae	5885	1.8	1.61	0.24	0.24	27
C. elegans	19099	4.2	3.16	0.27	0.37	41
D. melanogaster	14015	4.4	0.35	0.084	0.22	30
H. sapiens	25319	2.4	2.82	0.85	0.16	19