NON-CODING DNA, formerly “junk-DNA” continues to pose a remarkable challenge to geneticists and evolutionary scientists. On one hand, the Viral World camp with ever-expanding regulatory roles for these RNAs are eroding the old and outworn concept of functionless junk; but there are still apologists for junk DNA whose argument resides in the fact we cannot (yet) ascribe all the functions to that big non-coding chunk of genomes. A work in process.