Figure 2From: Human functional genetic studies are biased against the medically most relevant primate-specific genesYoung genes are rarely functionally characterized; but the youngest group is the most disease-related. (a) genes annotated by gene ontology with experimental evidence codes (GO-EXP); (b) genes annotated by KEGG; (c) disease-causing genes annotated by OMIM (Online Mendelian Inheritance in Man).Back to article page