Figure 1From: Multiple effects govern endogenous retrovirus survival patterns in human gene intronsDirectional bias of retroelements in mouse transcribed regions. ETn elements were those annotated as RLTRETN in the UCSC May 2004 mouse genome repeat annotation. The mutagenic population of ETn elements was reported in earlier reviews [5,19,20]. Expected variability in the data was calculated from Poisson statistics, which describe randomized gene resampling.Back to article page