You may remember from your high school biology class that DNA segments called genes are transcribed and that the copy, which is slightly different and called RNA, is then translated into a string of amino acids which folds up into a new protein. And in the more complicated eukaryote cells this process is more elaborate because the genes can be split up into multiple segments (called exons) in the DNA. This means the RNA transcript needs some editing to splice out the intervening regions. You may also remember your teacher explaining the cell division process and how the DNA is duplicated so that in the end there are two identical copies of the cell’s genome.
Finally you may remember your teacher explaining that these processes are found throughout all life, thus proving evolution yet again. For with evolution you cannot have one-offs. As your teacher assured you, evolution would be instantly falsified and discarded by all scientists if somewhere in the tree of life some organisms here or there revealed some other way of doing business.
Well guess what? One-off solutions are all over the evolutionary tree. The pattern that evolutionists expected didn’t turn out. Regarding the DNA mechanisms, consider the well-studied single-cell eukaryote named Trypanosoma brucei. Its mitochondria (the organelle that is the cell’s powerplant, turning food into fuel) employs very different, and incredible schemes.
First, the mitochondria DNA forms a huge, elegant network organized into so-called maxicircles and minicircles. There are a couple dozen maxicircles and thousands of minicircles. The minicircles are all different and laid out into an exact, three-dimensional network where each one is interconnected with just three neighbors.
This network is exactly recreated, with each minicircle copied and inserted in the right place, each time the cell divides into two daughter cells. It is a very complicated replication process.
Each minicircle is duplicated and a protein tag is attached to the copy indicating that it is a copy so that particular minicircle need not be copied. While this is occurring the entire network is slowly rotating between two opposing nodes where the copied minicircles are collected.
And regarding the DNA-RNA-protein sequence, a very different editing process is used. It is called “extensive RNA editing” but the label doesn’t do it justice. For many, but not all, of the mitochondria genes, hundreds of nucleotides are added to the RNA transcript and dozens are removed. All of this is done mistake-free, for if it isn’t done just right the result would likely be a useless protein. Not surprisingly all of this requires close to a thousand genes, in order to construct only a few dozen genes.
These are very unique solutions that do not form an evolutionary tree pattern. Nothing in biology makes sense in the light of evolution.