The X chromosome of the German cockroach, Blattella germanica, is homologous to a fly X chromosome despite 400 million years divergence

Table 1 Counts and proportions of genes assigned to each normal distribution in a mixture model of \(\log _{2}\frac {M}{F}\) values

Distribution	Proportion	Mean	Variance
Element F genes (51 total)
1	0.41	− 1.020	0.041
2	0.36	− 0.225	0.069
3	0.23	0.038	0.001
Element A–E genes (5,602 total)
1	0.01	− 0.888	5.600
2	0.41	0.001	0.010
3	0.41	0.049	0.045
4	0.17	− 0.348	0.329

ISSN: 1741-7007