Human DNA Spliced Into Mice Caused Them to Grow Abnormally Large Brains, Revealing Clues to Evolution of Intelligence

Human DNA Spliced into Mice Caused Them to Grow Abnormally Large Brains, Revealing Clues to Evolution of Intelligence

Geneticists have successfully spliced a human DNA sequence into mice, resulting in rodents with increased brain mass, an achievement that offers new clues to human evolution. The team behind the breakthrough reports that the addition of human genes increased average brain size by 6.5%, boosting neuron production and expanding the brain’s outer layer. These unique genetic effects provide scientists with a deeper understanding of how the human bra…

DNA and IQ: Big deal or much ado about nothing? – A meta-analysis

Intelligence is polygenic, highly heritable, and predicts wide-ranging life outcomes. Here, we meta-analysed the predictive validity of polygenic scor…

The brains of genetically modified mice increased significantly after being implanted with human DNA sequences.