The I Ching represents all manners in which life or consciousness expresses itself. There are 64 hexagrams (kua) in the I Ching.
The genetic code is the set of rules by which information encoded within genetic material (DNA or mRNA sequences) is translated into proteins by living cells. Translation is accomplished by the ribosome, which links amino acids in an order specified by mRNA, using transfer RNA (tRNA) molecules to carry amino acids and to read the mRNA three nucleotides at a time. The genetic code is highly similar among all organisms and can be expressed in a simple table with 64 entries.
There are three base pairs of a DNA codon makes 64 possible combinations, which is the same number of I Ching.
The way the amino acids are formed and combined to create the helix spiral of DNA also parallels the mathematical combinations required to create a six lined hexagram of the I Ching.
Each of the 64 hexagrams of the I Ching can be assigned to each of the 64 DNA codons of the genetic code.