How is eye colour passed down?

Teacher Ellie was recently asked a question by her Year 9 pupil in Manchester that she couldn't answer: "I have one blue eye and one brown eye, when I have kids, will they have one blue eye and one brown eye like me?" Eva Higginbotham put the question to eye colour expert David Mackey from The University of Western Australia... Like this podcast? Please help us by supporting the Naked Scientists