A gene which may make people more intelligent has been discovered by scientists.It is surprising that there are hardly any results like this. It is known that IQ is heritable, along with several personality and behavior traits. But as far as I know, there is no explanation based on specific genes. This could be a first, but I would wait for confirmation as other claims like this have had to be retracted.
Researchers have found that teenagers who had a highly functioning NPTN gene performed better in intelligence tests.
It is thought the NPTN gene indirectly affects how the brain cells communicate and may control the formation of the cerebral cortex, the outermost layer of the human brain, also known as ‘grey matter.’
My guess is that those traits are complex combinations of many genes, together with later environmental influences. But the whole idea of IQ genes gets people spooked.
You may have heard of the Nobel Prize Sperm Bank, and got the impression that it was some sort of evil Nazi eugenic failed experiment that was shut down after it was exposed. In fact the real name of it was the Repository for Germinal Choice, and its chief innovation was to give the human sperm buyers some choice about what they were getting. They produced over 200 babies, but none from Nobelist sperm.
According to a book review:
But in the end, the themes mesh. Plotz's meetings with employees, consumers and offspring of the repository, sympathetic people on the whole, may have led him to his understated conclusion that the enterprise wasn't so terrible. For one thing, Graham's inspired strategy of providing consumers a choice of the most desirable men possible freed women from the tyranny of early fertility doctors. And it has become standard industry practice; as Plotz says, ''All sperm banks have become eugenic sperm banks.''That's right, the experiment was a huge success in the sense that it transformed the industry into allowing consumer choice. Apparently the eugenics of personal choice has become acceptable.