For just a moment, take a look at yourself. You are made up of anywhere from 1012 to 1016 cells [1]. Each one of them working together endlessly to help you breathe, read, eat, sleep, and walk. But if we take a closer look, and analyze a single cell, we find that there is a completely other story to tell. We like to think that all of our cells are the same, but that simply isn’t the case. Even within a single tissue, the cell population is heterogeneous, due in large part to the high mutation rate in DNA replication. Of course, that isn’t anything to be concerned about. Mutations occur throughout the body. On average, the human body creates 37 million mutations throughout all of its cells [4]. Some, such as silent mutations, are called silent because they have no effect on the body. Other mutations, which may not be silent, still do not necessarily pose an immediate threat. About 99% of the human genome is noncoding, which means our body has no use for it, so if there is a mutation there, it has no effect on us [2]. This is because there are several ways to code for the same protein in the body. Along with that, since most of the genome is non-coding, there is a higher chance of a mutation occurring in a section of the genetic code that humans don’t use. With that being said, the mutations and variations in the genetic code of a single cell can unlock a series of scientific answers about cell lineage and evolution.