In just a few days, we will celebrate the birth of Gregor Johann Mendel, considered the father of modern genetics. Mendel found that each of the traits he studied were inherited as discrete units rather than blended together at each new generation. Those discrete units of inheritance are now known as “genes”, which are made up of sequences of DNA. Today, over two hundred years later, iGEM teams from around the world are engineering sequences of DNA in ways Mendel would never have dreamed – designing, building and testing biological systems to tackle everyday issues facing the world.