Table 1 . Proportions of probes detected above the median GC band control.

Genotype	Nucleic acid	Sex	Overall DABG	Exon module DABG	Expression module DABG	SNP module DABG
C167.4	DNA	Female	0.714435	0.744564	0.750768	0.6968
st e	DNA	Female	0.898116	0.897156	0.919405	0.899683
C167.4/st e	DNA	Female	0.908025	0.903021	0.915376	0.914164
C167.4/st e	RNA	Female	0.722919	0.791827	0.761107	0.770503
C167.4/st e	RNA	Male	0.722919	0.812318	0.79766	0.791968

The average proportion of probes detected above background (DABG) for genotype, nucleic acid, and sex. An individual probe was detected when signal strength was higher than the median intensity of the corresponding GC band control. Average DABG was calculated for each individual module and for the overall slide. The individual modules of expression, exon, and SNP, as well as the entire slide, had similar proportions of probes detected above the median GC band control. The distribution of signal values across all modules was similar for all RNA hybridizations and differed from DNA hybridizations. The three C167.4 parental DNA hybridizations had lower DABG compared with the other two genotypes of DNA samples.