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A review by Gert Korthof
16 Jan 2001
(update 3 Aug 2023)
A. Lima-de-Faria (1988) Evolution without Selection. Form and Function by Autoevolution, Elsevier Science Publishers. Profusely illustrated book. |
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Who is the author of these extraordinary claims? Lima-de-Faria is a cytogeneticist known for his Molecular Evolution and Organisation of the Chromosome (1983) (1). So there seems nothing wrong with that: just normal science. Could such a scientist produce an anti-Darwinist book? A 372 page, richly illustrated book with over 600 scientific references? He is not a creationist. He is an anti-Darwinist but not anti-evolution! He accepts evolution. But not natural selection. That makes this book even more remarkable! If not God or natural selection created the living world: who or what did? What is his explanation of evolution? Of course his answer is: 'auto-evolution'. It's in the title of his book: Form and Function by Autoevolution. But, what does it mean: 'autoevolution'? He failed to explain it to me in a straightforward way. He seems to be claiming that the origin of life has to be found in crystals and minerals. He claims that most patterns found in animal structures are already present in the minerals or in physico-chemical processes (p. 104). For example he suggests that it is an important observation that the pattern of circumvolutions of the human brain is already present in invertebrates, plants and pure physico-chemical processes. He illustrates many of these similarities with many beautiful pictures. However he doesn't convince the reader that these similarities are more than just coincidences. I fail to see the relevance of those similarities for explaining the causes of biological form and evolution. | |||
What is wrong with natural selection? |
Let us first have a look at the problems the author has with natural selection and later what his explanation is for the evolutionary process. Lima does not deny the existence of selection, but he denies that it has anything to do with evolution. "Selection is a word that must be removed from the vocabulary of biology" (page xviii) because it is an abstract concept and it is not material. "Selection cannot be measured in well-defined units such as millimetres, it cannot be poured into a vial and cannot be weighed on a balance" (pxviii). These are outrageous criterions. If all abstract concepts should be removed from science, there wouldn't be any scientific theory at all left. What about the concept of a 'gene'? The point is that 'abstract' is not the same as 'vague'. Numbers and mathematics are abstract but not vague! They are exact, precise. Is 'gravitational field' or 'electromagnetic field' a material thing? Is it abstract? I hope that Lima doesn't want to remove it from physics! There could be something wrong with the concept of natural selection, but Lima is unable to point it out. He used the wrong arguments as far as I can see. The concept 'lethal mutation' means that an individual with that mutation dies. Well, that is natural selection in action. Without natural selection the concept 'lethal mutation' has no meaning at all. Natural selection means differential reproduction of genotypes. This can be exactly measured in the laboratory and sometimes in the field. This is what population genetics is all about. But that word is not in his vocabulary. Lima does know about differential reproduction and rightly states that differential reproduction is not necessarily the mechanism of evolution. Of course not necessarily, but there could be evidence that selection is the mechanism of evolution, isn't it? And there happens to be evidence. If Lima only did read the evidence for natural selection presented by the anti-Darwinist Denton (Evolution: a Theory in Crisis), he would be convinced! I do agree with Lima (contrary to orthodox neo-Darwinism) that natural selection and mutation are not sufficient to explain all diversity of life forms on earth. But affirming that is quite another thing, than to remove it from biology. If selection exists, one cannot remove it from biology without making biology incomplete. Even a creationist like Phillip Johnson (Darwin on Trial) recognises natural selection as the most important Darwinian concept. And more than 50 years earlier the creationist Frank Lewis Marsh accepted micro-evolutionary change (Evolution, Creation and Science,1944). Indeed, Lima-de-Faria is exceptional among the critics of evolution in totally rejecting natural selection. | ||
Do crystals contain the secret of life? |
If Lima-de-Faria holds that crystals are the secret of life, he must be wrong according to writers such as Hubert Yockey, William Dembski and Dean Overman. Crystals contain order, not complexity. Complexity is unique to life, not order. Crystallography, high polymer chemistry and physics are separated from biology by a wide gap. (2) Erwin Schrödinger (1944) remarked in his famous What is life? that the genetic material, whatever its chemical structure, must be an 'aperiodic crystal'. "The genetic material must resemble a crystal in being stable and relatively inert, but it must also be 'aperiodic', in the sense of being composed of several different kinds of unit and not just of one kind of unit like a crystal of salt. The reason is that a string of identical units cannot convey information, whereas a string of dissimilar units can." (3).
Postscript 2011I discovered a paragraph The function of introns in Chapter 11. Introns are non-coding parts of genes and are spliced out. He writes "The function of introns, which were previously classed as 'junk' or 'parasitic' DNA, is becoming evident from the analysis of the splicing mechanisms. They are implicated in the regulation of gene expression." (page 152). Today, introns and splicing are the subject of intense research and gradually more and more functions of introns are discovered, and the regulation of gene expression is one of those functions. However, there is no universal function of introns which is valid for all genes. So, it seems that the function of introns must be investigated on a case by case basis. The human genome has about 160.000 introns (average 8 introns per gene, and 20.000 genes) and so far the function, if any, of the majority of introns is unknown. I was surprised that Lima-de-Faria was aware of functions of introns already in 1988. For further information about introns see wikipedia article introns. [23 April 2011]
Postscript 2023After the publication of Larry Moran (2023) 'What's in Your Genome? 90% of Your Genome Is Junk', I got interesed in introns again. Remarkably, people are searching for functions of introns all the time and apparently don't accept that introns are junk. About the magnitude of intron length Lima wrote: "in the dihydrofolate reductase gene the total intron length can repreent more than 95% of the gene. (Nurnberg et all, 1980)" (p.152). That percentage happens to be identical to the average intron length in the human genome! (Venter et al. (2001) 'The sequence of the human genome').Taken together I classify Lima in the same group with Senapathy and Erich van Daniken because of his unconstrained speculations and fantasies. Notes:
Further Reading
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Copyright © 1997 G.Korthof | First published: 31 May 1997 | update: 3 Aug 23 Notes/FR: 7 Mar 2024 |