Understanding epigenetic inheritance

Each of us inherit half our DNA from our Mum and half from our Dad, but recent research has been trying to understand if our parents are passing down more than just their genes. Scientists have been looking at how certain traits, like susceptibility to diabetes or anxiety, can be passed down through generations without being linked directly to the DNA code itself - a field called epigenetics. Eva Higginbotham spoke to Tessa Bertozzi, a PhD candidate at the University of Cambridge, about how this kind of non-genetic inheritance might happen less frequently than scientists originally thought.