Scientists Gave a Mouse a Stretch of Human DNA and Its Brain Grew 6% Bigger

Scientists Gave a Mouse a Stretch of Human DNA and Its Brain Grew 6% Bigger

A single DNA enhancer may help explain the human brain’s extraordinary size and complexity.

A team of geneticists has successfully inserted a human DNA sequence into mice, resulting in rodents with an increase in brain mass, an achievement that offers new clues about human evolution. The team responsible for this advance reports that the addition of human genes increased [...]