This page will develop as I find myself using words that are not self-evident. Please suggest or request any.
“We learn that there is a “genetic code” – in other words, that there is some sort of a language operating in the cell. But this is simply a metaphor devised in 1944 by the biophysicist Erwin Schroedinger; there is no cryptography going on between two commmunciating intelligent beings inside the cell. Genetics is like a code in some ways – but is not itself a code. Thsi metaphor has been immensely powerful and helpful in conceptualising the way the cell works, but it is about what the cell is like, not what the cell is. This is semiotics, the domain of meanings…”
Jonathan Marks in An Alternative Introduction to Biological Anthropology