DNA consists of coded “messages” that are copied by “messenger RNA.” The copy is taken to a processing plant called a ribosome, which then “translates” the message into a functional three-dimensional part or genetic word called a protein. Thus, like the recipes in cook books, sequences of nucleotide bases in DNA carry meaning that is independent of the significance of each of the symbols that make the “message.” They not only look like specifications, they function as specifications. | DNA consists of coded “messages” that are copied by “messenger RNA.” The copy is taken to a processing plant called a ribosome, which then “translates” the message into a functional three-dimensional part or genetic word called a protein. Thus, like the recipes in cook books, sequences of nucleotide bases in DNA carry meaning that is independent of the significance of each of the symbols that make the “message.” They not only look like specifications, they function as specifications. |