The Invalidity of Morphological Homology The Genetic and Embryological Impasse of Homology The Fall of the Homology in Tetrapod Limbs
The Invalidity of Molecular Homology The "Tree of Life" is Collapsing

 The Invalidity of Molecular Homology

Evolutionists' advancement of homology as evidence for evolution is invalid not only at the morphological level, but also at the molecular level. Evolutionists say that the DNA codes, or the corresponding protein structures, of different living species are similar, and that this similarity is evidence that these living species have evolved from common ancestors, or else from each other. For example, it is regularly stated in the evolutionist literature that "there is a great similarity between the DNA of a human and that of an ape," and this similarity is presented as a proof for the evolutionist claim that there is an evolutionary relationship between man and ape.

We must make it clear from the start that it is no surprise that living creatures on the earth should possess very similar DNA structures. Living things' basic life processes are the same, and since human beings possess a living body, they cannot be expected to have a different DNA structure to other creatures. Like other creatures, human beings develop by consuming carbohydrates, lipids, and proteins, oxygen circulates through the blood in their bodies, and energy is produced every second in each of their cells by the use of this oxygen.

For this reason, the fact that living things possess genetic similarities is no proof of the evolutionist claim that they evolved from a common ancestor. If evolutionists want to prove their theory of evolution from a common ancestor, then they have to show that creatures alleged to be each other's common ancestors have a direct line of descent in their molecular structures; in fact, however, as we shall shortly be examining, there have been no concrete discoveries showing any such thing.

Let us first of all take the matter of "the similarity between human and chimpanzee DNA." The latest studies on this issue have revealed that evolutionist propaganda about a "98 %" or "99 %" similarity between man and chimp is totally erroneous.

If a slightly wider study is made of this subject, it can be seen that the DNA of much more surprising creatures resembles that of man. One of these similarities is between man and worms of the nematode phylum. For example, genetic analyses published in New Scientist have revealed that "nearly 75% of human genes have some counterpart in nematodes-millimeter-long soil-dwelling worms."292 This definitely does not mean that there is only a 25% difference between man and these worms! According to the family tree made by evolutionists, the Chordata phylum, in which man is included, and the Nematoda phylum were different to each other even 530 million years ago.

This situation clearly reveals that the similarity between the DNA strands of these two different categories of life is no evidence for the claim that these creatures evolved from a common ancestor.


For a very long time, the evolutionist choir had been propagating the unsubstantiated thesis that there is very little genetic difference between humans and chimps. In every piece of evolutionist literature you could read sentences like "we are 99 percent equal to chimps" or "there is only 1 percent of DNA that makes us human." Although no conclusive comparison between human and chimp genomes has been made, Darwinist ideology led them to assume that there is very little difference between the two species.

A study in October 2002 revealed that the evolutionist propaganda on this issue, like many others, is completely false. Humans and chimps are not "99% similar" as the evolutionist fairy tale would have it. Genetic similarity turns out to be less than 95%. A news story reported by, entitled "Humans, chimps more different than thought," reports the following:

There are more differences between a chimpanzee and a human being than once believed, according to a new genetic study.

Biologists have long held that the genes of chimps and humans are about 98.5 percent identical. But Roy Britten, a biologist at the California Institute of Technology, said in a study published this week that a new way of comparing the genes shows that the human and chimp genetic similarity is only about 95 percent.

Britten based this on a computer program that compared 780,000 of the 3 billion base pairs in the human DNA helix with those of the chimp. He found more mismatches than earlier researchers had, and concluded that at least 3.9 percent of the DNA bases were different.

This led him to conclude that there is a fundamental genetic difference between the species of about 5 percent.1

New Scientist, a leading science magazine and a strong supporter of Darwinism, reported the following on the same subject in an article titled "Human-chimp DNA difference trebled":

We are more unique than previously thought, according to new comparisons of human and chimpanzee DNA. It has long been held that we share 98.5 per cent of our genetic material with our closest relatives. That now appears to be wrong. In fact, we share less than 95 per cent of our genetic material, a three-fold increase in the variation between us and chimps. 2

Biologist Boy Britten and other evolutionists continue to assess the result in terms of evolutionary theory, but in fact there is no scientific reason to do so. The theory of evolution is supported neither by the fossil record nor by genetic or biochemical data. On the contrary, the evidence shows that different life forms on Earth appeared quite abruptly without any evolutionary ancestors and that their complex systems prove the existence of an "intelligent design."


In fact, when the results of DNA analyses from different species and classes are compared, it is seen that the sequences clearly do not agree with any evolutionist family tree. According to the evolutionist thesis, living things must have undergone a progressive increase in complexity, and, parallel to this, it is to be expected that the number of genes, which make up their genetic data, should also gradually increase. But the data obtained show that this thesis is the work of fantasy.

The Russian scientist Theodosius Dobzhansky, one of the best-known theoreticians of evolution, once stated that this irregular relationship between living things and their DNA is a great problem that evolution cannot explain:

More complex organisms generally have more DNA per cell than do simpler ones, but this rule has conspicuous exceptions. Man is nowhere near the top of the list, being exceeded by Amphiuma (an amphibian), Protopterus (a lungfish), and even ordinary frogs and toads. Why this should be so has long been a puzzle.293

Comparisons of chromosome numbers and DNA structures show that there is no evolutionary relationship between different living species.

Other comparisons on the molecular level produce other examples of inconsistency which render evolutionist views meaningless. When the protein strands of various living things are analysed in a laboratory, results emerge which are totally unexpected from the evolutionists' point of view, and some of which are utterly astounding. For example, the cytochrome-C protein in man differs by 14 amino acids from that in a horse, but by only eight from that in a kangaroo. When the same strand is examined, turtles appear closer to man than to a reptile such as the rattlesnake. When this situation is viewed from the evolutionist point of view, a meaningless result will emerge, such as that turtles are more closely related to man than they are to snakes.

For instance, chickens and sea snakes differ by 17 amino acids in 100 codons and horses and sharks by 16, which is a greater difference than that between dogs and worm flies, which belong to different phyla even, and which differ by only 15 amino acids.

Similar facts have been discovered with respect to hemoglobin. The hemoglobin protein found in human beings differs from that found in lemurs by 20 amino acids, but from that in pigs by only 14. The situation is more or less the same for other proteins.294

This being the case, evolutionists should arrive at the conclusion that, in evolutionary terms, man is more closely related to the kangaroo than to the horse, or to the pig than to the lemur. But these results conflict with all the "evolutionary family tree" plans that have so far been accepted. Protein similarities continue to produce astounding surprises. For example:

Adrian Friday and Martin Bishop of Cambridge have analyzed the available protein sequence data for tetrapods… To their surprise, in nearly all cases, man (the mammal) and chicken (the bird) were paired off as closest relatives, with the crocodile as next nearest relative…295

Again, when these similarities are approached from the point of view of evolutionist logic, they lead us to the ridiculous conclusion that man's closest evolutionary relative is the chicken. Paul Erbrich stresses the fact that molecular analyses produce results that show very different groups of living thing to be closely related in this way:

Proteins with nearly the same structure and function (homologous proteins) are found in increasing numbers in phylogenetically different, even very distinct taxa (e.g.,hemoglobins in vertebrates, in some invertebrates, and even in certain plants).296

Dr. Christian Schwabe, a biochemical researcher from the University of South Carolina's Faculty of Medicine, is a scientist who spent years trying to find evidence for evolution in the molecular field. He first tried to establish evolutionary relationships between living things by carrying out studies on proteins such as insulin and relaxin. But Schwabe has several times been forced to admit that he has not been able to come by any evidence for evolution in his studies. He says the following in an article in Science:

Molecular evolution is about to be accepted as a method superior to paleontology for the discovery of evolutionary relationships. As a molecular evolutionist I should be elated. Instead it seems disconcerting that many exceptions exist to the orderly progression of species as determined by molecular homologies: so many in fact that I think the exception, the quirks, may carry the more important message.297

Schwabe's studies on relaxins produced rather interesting results:

Against this background of high variability between relaxins from purportedly closely related species, the relaxins of pig and whale are all but identical. The molecules derived from rats, guinea-pigs, man and pigs are as distant from each other (approximately 55%) as all are from the elasmobranch's relaxin. ...Insulin, however, brings man and pig phylogenetically closer together than chimpanzee and man.298

On the molecular level no organism is the "ancestor" of another, or more "primitive" or "advanced" than another.

Schwabe was faced by the same realities when he compared the arrangements of other proteins besides insulin and relaxin. Schwabe has this to say about these other proteins that constitute exceptions to the orderly molecular development proposed by evolutionists:

The relaxin and insulin families do not stand alone as exceptions to the orderly interpretation of molecular evolution in conventional monophyletic terms. It is instructive to look at additional examples of purportedly anomalous protein evolution and note that the explanations permissible under the molecular clock theories cover a range of ad hoc explanations apparently limited only by imagination.299

Schwabe reveals that the comparison of the arrangement of lysosomes, cytochromes, and many hormones and amino acids show "unexpected results and anomalies" from the evolutionary point of view. Based on all this evidence, Schwabe maintains that all proteins had their present forms right from the start, undergoing no evolution, and that no intermediate form has been found between molecules, in the same way as with fossils.

Concerning these findings in the field of molecular biology, Dr. Michael Denton comments:

Each class at a molecular level is unique, isolated and unlinked by intermediates. Thus, molecules, like fossils, have failed to provide the elusive intermediates so long sought by evolutionary biology… At a molecular level, no organism is "ancestral" or "primitive" or "advanced" compared with its relatives… There is little doubt that if this molecular evidence had been available a century ago… the idea of organic evolution might never have been accepted.300

292 Karen Hopkin, "The Greatest Apes," New Scientist, vol. 62, issue 2186, 15 May 1999, p. 27.
293 Theodosius Dobzhansky, Genetics of the Evolutionary Process, Columbia University Press, New York & London, 1970, pp. 17-18.
294 Pierre Paul Grassé, Evolution of Living Organisms, Academic Press, New York, 1977, p. 194.
295 Mike Benton, "Is a Dog More Like Lizard or a Chicken?," New Scientist, vol. 103, August 16, 1984, p. 19. (emphasis added)
296 Paul Erbrich, "On the Probability of the Emergence of a Protein with a Particular Function," Acta Biotheoretica, vol. 34, 1985, p. 53.
297 Christian Schwabe, "On the Validity of Molecular Evolution," Trends in Biochemical Sciences, vol. 11, July 1986, p. 280. (emphasis added)
298 Christian Schwabe, "Theoretical Limitations of Molecular Phylogenetics and the Evolution of Relaxins," Comparative Biochemical Physiology, vol. 107B, 1974, pp.171-172. (emphasis added)
299 Christian Schwabe and Gregory W. Warr, "A Polyphyletic View of Evolution," Perspectives in Biology and Medicine, vol. 27, Spring 1984, p. 473. (emphasis added)
300 Michael Denton, Evolution: A Theory in Crisis, Burnett Books, London, 1985, pp. 290-291. (emphasis added)