[xm177e2]

So shouldn't we see more junk DNA code in all older species?

What is an "older species?"

If all species descended from the same cell, all would be equally "old," in some sense. When a new species branches off from an old one, it does not do so in a pristine state, it carries over most of the mutations the last one had.

[Southack]

"If all species descended from the same cell, all would be equally "old," in some sense. When a new species branches off from an old one, it does not do so in a pristine state, it carries over most of the mutations the last one had."

Besides the 4 unique "root" DNA lines, different branches of descent should have *some* different junk DNA, yes?! New species from a newer branch should have predictably different levels (given orders of magnitude) of junk DNA if Common Descent is actually in play, correct?

We wouldn't expect the levels to junk DNA to jump *both* up and down wildly if Evolutionary Theory was responsible, yes?!