With the completion of the human genome project in 2003, the entire sequence of the 3 billion DNA base pairs of the genome is known. However, the human genome is not just a linear string of base pairs but rather folds up into a dynamic and 3D structure with proteins and RNA. Wendy uses coloured tags and a microscope to see where different human chromosomes and genes are located in the cell nucleus and how the position of genes within the nucleus affects whether they are turned on or off during development. Wendy is also involved in communicating human genetics in Scottish schools.