Epigenetics is the idea that genes can express themselves differently based on the environment they are put in. It is how you can have the same genetic code in

Epigenetics is the idea that genes can express themselves differently based on the environment they are put in. It is how you can have the same genetic code in your brain as you skin, but the cells the genes are part of are completely different. It's how you can have a hard drive with a ton of information on it, but choose to read only small portions at a time