Horizontal back-to-back histograms displaying the direction of Hardy-Weinberg departures across a range of bins of Fisher's Exact test P-values. The number of SNPs with a positive DA value (excess homozygotes) is graphed above the zero line in each graph. The number of SNPs with a negative DA value is graphed below the zero line in each graph. a, Data from AJ SNPs. b, Data from CEU SNPs.
Olshen et al. BMC Genetics 2008 9:14 doi:10.1186/1471-2156-9-14