A paper illustrates the action of DNA loop extrusion processes, which serve multiple functions to maintain the genome, with an interesting graphic: gears.
Histones are responsible for organizing and packaging the DNA of a cell nucleus into structural units known as nucleosomes.
Venema cites the vitellogenin pseudogene as supposedly demonstrating common ancestry between humans and birds, such as chickens.
Packing that entire genome into a tiny nucleus poses a formidable challenge. And you want it organized and accessible, too?