Life is definitely digital. The genetic code of all living organisms are represented by a long sequence of simple molecules called nucleotides, or bases, which makes up the Deoxyribonucleic acid,
better known as DNA.

DNA is an essential molecule for life. It acts like a recipe holding the instructions telling our bodies how to develop and function.

There are only four such nucleotides, and the entire genetic code of a human can be seen as a simple, though 3 billion long, string of the letters A, C, G, and T.