Fig. 1From: Early evolutionary history and genomic features of gene duplicates in the human genomeSynonymous changes per synonymous site (K S ) based age distribution of 184 human gene duplicate pairs. The average K S between coding regions of human versus chimpanzee, gorilla, orang-utan, and macaque [28, 67] is shown for scale, and suggests that a large fraction of human gene duplicates within this data set may have originated since the human-chimpanzee splitBack to article page