The Genetic Code is not a synonym for the Bible Code

Oh, boy. The Intelligent Design creationists are all excited about a new paper that purports to have identified an intelligent signal in the genetic code.

Here’s a new paper that can be added to the growing stack of intelligent-design articles in peer-reviewed journals. Even though the authors do not use the phrase “intelligent design,” their reasoning centers on the detection of an intelligent signal embedded in the genetic code — a mathematical and semantic message that cannot be accounted for by a natural cause, “be it Darwinian, Lamarckian,” chemical affinities or energetics, or any other.

I’ve read the paper by ShCherbak and Makukov, and by golly, the Discovery Institute flack really has accurately summarized the paper: it does explicitly and clearly claim to have identified evidence of design in the genetic code! That’s newsworthy in itself, that the creationists can accurately summarize a scientific paper…as long as the results conform to their ideological expectations.

Unfortunately, what they’ve so honestly described is good old honest garbage.

Here’s the short summary of what they do: they jigger the identities of the amino acids coded for by each codon into a number, a nucleon sum. What is that, you might ask? It’s determined by adding up the number of protons and neutrons in the amino acid, which is simply the mass number of the compound. Further, you can distinguish the amino acid into it’s R group, and the atoms that make up the peptide chain proper, which he calls the B group, for standard block. The mass number of the B group is always 74, except for proline, so he transfers a hydrogen from the R group to the proline B group to bring it up to 74, and by the way, did you notice that 74 is two times 37, which is a prime number? Now if you take all the three-digit decimals with identical digits (111, 222, 333…999), and sum their digits (111=3, 222=6, 333=9, etc.) you get the quotient of the number divided by…37!!!1!!

Are you impressed yet? This is simply numerology, juggling highly derived quantities that have little to do with functional properties of the molecules to come up with arbitrary numerical relationships, and then claiming that they’re somehow significant. They also play games with the sums of the mass numbers of just the R groups for certain codons, adding or subtracting the B number, finagling things until they get numbers that are evenly divisible by their magic prime number of 37, etc. It’s pure nonsense through and through.

But every once in a while, something sensible emerges out of the murk. Here’s the logic of their argument:

To be considered unambiguously as an intelligent signal, any patterns in the code must satisfy the following two criteria: (1) they must be highly significant statistically and (2) not only must they possess intelligent-like features, but they should be inconsistent in principle with any natural process, be it Darwinian or Lamarckian evolution, driven by amino acid biosynthesis, genomic changes, affinities between (anti)codons and amino acids, selection for the increased diversity of proteins, energetics of codon-anticodon interactions, or various pre-translational mechanisms.

(1) is simply saying that there must be a pattern of some sort — if the code were purely random assignment of arbitrary nucleotides to each amino acid, it wouldn’t be much of a sign — it would suggest that the sequence is noise, not signal. (2) is the really hard part, the one where you’d have to do a lot of work: you’d have to show that natural processes did not contribute to the pattern. They do not do that. They can’t do that. They take a different and curious tack.

They literally argue that because organizing the code by their nucleon sums makes no sense and has no reasonable functional consequences…therefore it must be an artificial and intentional feature. I’ve heard this argument before. It’s called the Chewbacca defense. Ladies and gentlemen, think about it: that does not make sense! If nucleon numbers show a mathematical pattern of any kind in their relationship to codons, you must accept the existence of a designer.

However, if we can show a natural property that leads to the organization of the genetic code, then I’m afraid their argument evaporates. Even more so than building an argument on the Chewbacca defense, that is.

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