A family is crowding round the new-born baby; mother is smiling but exhausted. Someone says: ‘He’s got his mum’s eyes.’ another chips in: ‘Look at those legs – he’s going to be a rugby player like his dad.’
As the baby grows, signs of intelligence will be linked to a clever parent or relative; musical or sporting ability likewise. How talented we are, how likely we are to develop diseases such as diabetes or alzheimer’s, even whether we have a sunny or a gloomy nature, are all heavily influenced by our genes.
Or are they? Among the most radical and surprising findings of genetic research is the idea that genes aren’t fixed and set at the moment of conception, like cards in a hand of poker. Instead, most genes come with dimmer switches attached.
Read more at Daily Mail.