What makes a fish a fish, a cow a cow, or you you? It's all in our genes - to be specific, in the genetic code that is found in our DNA. Learning about genetics will help us to understand how traits are passed from one generation to the next and to understand the methods used to predict and track the inheritance of genetic traits.

How Do Genes Work? It Runs in the Family: Inherited Traits When Good Genes Go Bad Ethics of Genetics