DNA (DeoxyriboNucleic Acid) is the vehicle of inherited information in the form of a "double strand", a type of zip structure as binary information system of inheritance in every cell, combining male and female genetic information in sexual reproduction. The evolutionary "invention" of bisexual multiplication at some time in the very remote past now shrouded in darkness has resulted in the unbelievable variety of individuals and species we have today.
"In human beings, a quarter of the genes found have corresponding variants in the genome of yeast, although the last common ancestor of humans and yeast probably existed about 700 million years ago."
"This discovery allows us to conclude: there are in fact no "human" and no "yeast" genes as the gene by its very definition must be understood as a continuum of biological information which Nature has preserved for millions of years." (Winnacker)
We find a vague architectural analogy to the structure of DNA in the double spiral staircase, the two stairs forming an element, being binary in the same way as DNA through its separation of up and down, on and off, male and female