蜜芽传媒

Tom Holland and Iszi Lawrence follow history鈥檚 lines and linkages to uncover connections and compelling stories. This week, with the imminent arrival of a new Royal baby, Tom and Iszi examine bloodlines - from some of the Queen鈥檚 own surprising ancestors, to the vagaries of dog breeding.

Adam Rutherford discusses how DNA testing has informed the study of history and the programme asks if race really is a question of genetics, or a cultural construct.

Producer: Alison Vernon-Smith
A Pier production for 蜜芽传媒 Radio 4