For that reason, DNA can be used to encode messages:
If just encoding text, one way is to convert each letter of the alphabet into a three-letter code. Using three bases, such as A, C, and T, gives 27 combinations - enough for the English alphabet plus a space - with a code such as AAA = A, AAC = B, and so on (1 in graphic below). However, researchers often want to encode more than just text, so most current methods instead first translate data into binary code - the language of 1s and 0s used in electronic media. Using binary, the four bases of DNA could theoretically store up to two bits of information per nucleotide, with a code such as A = 00, C = 01, and so on. --CATHERINE OFFORD, "INFOGRAPHIC: WRITING WITH DNA" AT THE SCIENTISTIn 2017, one Harvard group encoded a video, an image of one of the earliest surviving motion pictures, in a DNA sample from bacteria:
But in some ways, our genomes are much more powerful than words. They are part of a process that utters not just ideas but living beings. Including human beings, who ourselves have ideas.













Comment: But if you ask hardcore neo-Darwinists like PZ Myers, DNA isn't really a code. It just looks like a code, acts like a code, and can be used as a code. But really, it's not a code. Because that would imply a coder.