Duplicate genes help humans go the extra mile
Human beings can run long distances because we carry multiple copies of a gene that helps supply our cells with energy, a new study suggests. That supports the idea that endurance running gave our human ancestors an evolutionary edge.An analysis of DNA from 10 primate species reveals that, compared with the genome of chimpanzees and gorillas, our genome includes many more duplicates of a gene called aquaporin 7 (AQP7), which transports water and sugary compounds into cells. Humans appear to have five copies of this gene, whereas chimps have just two, and other primates carry only one copy…
New Scientist: Duplicate genes help humans go the extra mile
