DNA is not complex, it is made up of 4 simple nitrogen based molecules bound to a sugar and a phosphate molecule. However there is a lot of it. Quantity is not complexity
DNA is very complicated, as I said, even a teaspoon contains more information than all the books in the Wold combined:
The genome continues to show evidence of complexity and precise design.
“While the prevalence of this new genetic code in the DNA seems to be less common than cytosine methylations, the unexpected linguistic complexity of this epigenetic tag is anything but simple,”
Jeffrey P. Tomkins, Ph.D in genetics writes, “As scientific discovery advances in the field of genomics, the genome and its diversity of elaborate interlocking languages speaks of vast levels of intelligent bio-engineering, not purposeless random evolution.”