Which science would that be, Dave Nelson's Magical Monkey Tour and All Star Revue?<quoted text>
As far as science is concerned, DNA has existed longer than life has existed.
From our knowledge of present-day organisms and the molecules they contain, it seems likely that the development of the directly autocatalytic mechanisms fundamental to living systems began with the evolution of families of molecules that could catalyze their own replication. With time, a family of cooperating RNA catalysts probably developed the ability to direct synthesis of polypeptides. DNA is likely to have been a late addition: as the accumulation of additional protein catalysts allowed more efficient and complex cells to evolve, the DNA double helix replaced RNA as a more stable molecule for storing the increased amounts of genetic information required by such cells.
DNA is likely to have been a late edition.
We'll add your post to things the Riverside Easter Bunny Pulled Out His Ass file. Dave angels on will be happy. He's a poo-flinging, preposterous, paranoid, psychopath. But, he is not a documented prevaricator like you, Easter Bunny.