It follows - the third surprise - that much of what we call the 'environment' proves to be itself under genetic influence.

But there's a fine line in my mind between having genetic influence on personality, on behaviour, on every aspect of our lives, and having those be deterministic.

Their research could also point to a genetic influence on human height.

Association studies are used to determine the genetic influence on phenotypic presentation.

This study provides evidence of the genetic influence of the brain structure and size, which are believed to both influence intelligence in some way.