A cDNA array-based comparative genomic hybridization study out of the University of Colorado Health Sciences Center and Stanford found that, among 10 primate species that spanned a 60-million-year period of evolutionary time, almost one-third of all human genes showed a predicted change in copy number in one or more of these species. The genes identified with these changes are likely to be important to lineage-specific traits, say scientists in the Genome Research paper, such as physiological adaptations that permit humans to run long distances. (Well, some humans, anyway.)
What If You're Human and Still Can't Run a Mile?
Aug 01, 2007