In spring 1998, Robert Plomin claimed to have discovered a gene linked with intelligence. More recently, the Human Genome Project was cautious when approaching areas implying racial differences since research actually shows greater genetic differences within races than between races. However, not all individuals are endowed with the same intelligence and many believe this must have something to do with our genes and the way they interact with the environment. Identical twins are more likely to obtain the same score in an IQ test than twins from two separate eggs that have a different genetic make- up.
It is important to remember that genes work by interacting with the environment, so social factors will also infl uence intelligence. Intelligence tests may be more of an assessment of social factors, such as your educational background. Black children adopted into white middle-class families score signifi cantly higher on average than those in working-class families – implying a cultural slant to tests.
My classmate thinks that this article suggests that race is suggested as determining intelligence, because race is mentioned several times in the article as being linked to intelligence, whether genetically or through social factors. I want to check this before confronting her, but I think not. Who's right?
In my view, the first bolded sentence dismisses race as a determinant, because there are 'greater genetic differences within' each race than between different races.
The second bolded sentence also rejects race, because it only shows a cultural slant to tests and the first sentence of the last para states 'social factors will also infl uence intelligence.'
Source: ‘Are you born brainy?’, 17 November 2004, from BBC News at www.bbcnews.com