Many mysteries still surround the issue of what noncoding DNA is, and whether it really is worthless junk or something more. Portions of it, at least, have turned out to be vitally important biologically. But even beyond the question of its functionality (or lack of it), researchers are beginning to appreciate how noncoding DNA can be a genetic resource for cells and a nursery where new genes can evolve.~ Jake Buehler from, https://www.quantamagazine.org/the-complex-truth-about-junk-dna-20210901/
I knew there were “large” portions of the DNA strand that weren’t [as far as we could tell] important. But 98%? waaaaaaaaat? Also, many other great things in this article—and it’s always nice to link to Quanta Magazine.