Encode

All cells on Earth today store their hereditary information in the form of double-strand molecules of DNA—long, unbranched, paired polymer chains, which are always composed of the same four types of monomers. These monomers, chemical compounds known as nucleotides, have nicknames drawn from a four-letter alphabet—A, T, C, G—and they are strung together in a long linear sequence that encodes the hereditary information, just as the sequence of 1’s and 0’s encodes the information in a computer file.

–What is a nucleotide? | Video by Joao’s Lab