It is during the latter stages of the production of an animal oocyte that many functionalities of what some disparage as “junk DNA” take center stage.
In the words of Robert Rosen we have to “drastically reconsider what is meant by “genetic information.’”
Let us give some thought to the Y chromosome of Drosophila melanogaster, that engaging fly which is the bond-servant of genetics.
Evolutionary theory predicts lots of “Darwinian detritus” that does nothing for organisms. That prediction keeps coming up false.
Most studies simply infer or invent some story about the evolution of a gene without any experimental tests.