GULO and other Irrational Atheist Arguments – Part 1

7 Popular, but Fallacious Arguments used by Atheists


Evolutionists believe glowing eyes evolved multiple times independently.
Arguments that are demonstrably wrong yet still believed demonstrate the irrational nature of atheist and evolutionist belief.


The Biblical book of Acts recounts an event where a demon possessed girl who made a business for her masters from telling fortunes took to following around the Apostle Paul, shouting:

“…These men are servants of the Most High God, who are telling you the way to be saved.”  She kept this up  for many days. Finally Paul became so troubled that he turned around and said to the spirit, “In the name of Jesus Christ I command you to come out of her!” At that moment the spirit left her.1

For those wondering why the apostle cast out a demon providing free advertisement for him, the answer is simple: God’s people are forbidden from having anything to do with demons2 – even if what they do is initially helpful. The amazing thing to Christians is that Paul put up so long with it. I mention it because I likewise feel troubled by the recurring contention of Atheists that the pseudo-gene known as GULO or GLO proves common descent. So let me
cast out this demon and be done with this irrational contention once and for all.  And while I’m at at it I’ll address 6 other irrational atheist arguments as well.  (I use irrational in the sense that these arguments are easily demonstrated to be fallacious.) So following are 7 arguments used by evolutionists and atheists alike which are logically fallacious – and thus those who continue to use them – having read this – are showing themselves to be irrational in their anti-Christian beliefs.


To understand the atheists’ and evolutionists’ contention for these first two items that they present as evidence – GULO and LUCA – one must first understand one of the core theories of evolution – common descent. I say one component because according to the well respected late evolutionist Ernst Mayr, there are 5 basic components that make up the theory of evolution.3 The theory of Common Descent states that all creatures – from the worm in the ground to your cat and dog to you and your family are all descendant from a single common ancestor. That’s why they talk of the evolutionary “tree of life.” The common ancestor is at the trunk of the tree, and all other species make up the limbs and leaves. This concept is key to the next two items.

1. “GULO proves Evolution”

What is GULO and how does it supposedly prove evolution?


GULO and the implications for evolution

L-gulonolactone oxidase – commonly known as GULO – is a gene designed to synthesize vitamin C from glucose or galactose, but in some groups of animals, the GULO gene does function in that manner, and so it is given the label of “pseudogene.”4

Additionally, the gene is “broken” reportedly in the same place in multiple species resulting in a loss of the ability to synthesize vitamin C.  Humans are not able to synthesize vitamin C. Neither are guinea pigs, chimpanzees and several species of monkeys along with some species of birds, bats and fish. Evolutionists look at these facts and conclude that the only way the gene could have broken in the sample place is if the gene of a common ancestor became broken, and that same broken gene was then inherited by subsequent descendants.  Thus to their way of thinking the only way this broken gene would show up in multiple species is if it started in a common ancestor.

Recent evidence refutes this conclusion, and the attempts by evolutionists to salvage their conclusion makes matters worse – Continue Reading