OR protein haplotype alleles for selected ORs. This is shown for OR1D2 (A), OR4E2 (B) and OR7C2 (C), typifying genes with high inter-allele diversity of CORP-predicted functionality. Segregating protein positions (indicated on top) are shown for each haplotype sequence, with yellow indicating non-reference SNP allele. The ancestral chimpanzee allele is shown in the lower row of each panel. The frequency of each allele in the population (%freq) and the CORP pseudogene probability score  are indicated in the two right columns. A high CORP score predicts a high pseudogene probability.