My Dear Watson: Four Observations on the DNA Code and Evolution

The DNA code is used in cells to translate a sequence of nucleotides into a sequence of amino acids, which then make up a protein. In the past fifty years we have learned four important things about the code:

1. The DNA code is universal. There are minor variations scattered about, but the same canonical code is found across the species.

2. The DNA code is special. The DNA is not just some random, off the shelf, code. It has unique properties that, for example, make the translation process m...