In the largest study of it’s kind, researchers have identified more than 500 genes that are linked to intellectual ability.
Researchers, using data from the UK Biobank, compared DNA variants from more than 240,000 people.
Their analysis identified 538 genes linked to intellectual ability, and 187 regions of the human genome that are associated with thinking skills.
Some of these genes are also linked to other biological processes, including living longer.
Genes found to be linked to intelligence also appeared to influence other biological processes, researchers said.
They also found that genes linked with problem solving powers were associated with the process by which neurons carry signals from one place to another in the brain.
Using these genetic discoveries, scientists predicted seven per cent of intelligence differences in an independent group of individuals using their DNA alone.
“Our study identified a large number of genes linked to intelligence,” said David Hill from University of Edinburgh.