It is an age old debate that engages scientists and philosophers - which is the more powerful influence on who we are, nature or nurture? In recent years, genetic science has done much to reframe the debate by highlighting the connections between our individual DNA and our traits and behaviours. Stephen Sackur speaks to Robert Plomin, a professor of behavioural genetics at Kings College London, who is at the a forefront of this research. To what extent are our genes our destiny? Show less