The simple case for germline gene editing

For over three decades, scientists have had the ability to alter the genomes of other species of animals. Using viruses to alter DNA sequences, scientists were able to create a range of transgenic animals — with altered physical, cognitive and social characteristics. In 2007, scientists at Case Western Reserve University used viruses to alter a gene called PEPCK-A in mice. The resulting transgenic mice could run for six kilometres without a break — 30 times longer than a normal mouse’s limit of 200 metres (Hakemi et al., 2007)