Junk DNA, High R, Pinnipeds, and the Multiverse

[Giltil (Gilbert Thill)]

@John_Harshman

No, it is not. The non-conserved parts retain their hierarchical structure for many millions of years. One can certainly observed the structure throughout mammals or throughout birds, though the structure in junk DNA doesn’t reach any further. I can’t, for example, align introns between birds and crocodiles*.

Ok. But do we know what proportion of the non-conserved parts still exhibiting a hierarchical structure evolved at a truly neutral rate?