Simple Genetics

In 5^th grade I learned a little about genetics. We took that traits of our parents, for example the color of their eyes, and made charts which showed, via recessive and dominant genes, how our own genetic makeup must look. At that stage of the game, the science taught to us was simple: every explanation for every trait came from the match up of my parent’s genes, then their parent’s genes, and so on. The whole thing seemed pretty straight forward, much more like a math equation than natural science.

Years later,