Category: Evolution

Another Confirmation of the Creationist View of the Genome

In my previous post, I discussed the new journal BIO-Complexity. I briefly discussed the first two articles in the journal, but I want to go into one of them in more detail, because the results are fascinating.

To understand the importance of the paper’s result, remember one of the ways evolutionists think information can be added to a genome. They think that gene duplication occurs, resulting in two identical genes. The copy of the gene can mutate freely, since it doesn’t really have to produce anything. After all, the original gene is still producing the protein that the organism needs, so if the duplicate gene doesn’t produce anything useful, there is really no problem. Since the copy is free to mutate, it can presumably become a completely different gene, adding information to the genome. This is supposed to play a major role in evolution.

So imagine you have this gene copy that is free to mutate. Since it can mutate a lot, it presumably can “explore” all sorts of possibilities as far as the new proteins it might make. When it hits on a protein that is beneficial to the organism’s survival, it will be naturally selected, and presto, there is new information in the genome of that species.

This idea sounds reasonable (ignoring annoying things like information theory), but it hinges on the assumption that a duplicated gene is free to mutate and that the cell continues to “sample” that mutating gene so as to “try out” the new proteins for which the duplicate is coding. Well, that didn’t happen in the experiment presented in the BIO-Complexity paper.

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Real Science Might Be Alive and Well

Sometimes I worry about the state of science today. The majority of students are woefully ignorant about even the most basic scientific concepts. More worrisome, however, ideology drives much of science. Evolution (in the ‘goo to you’ sense) is taught as fact, even though it is, at best, an unconfirmed hypothesis. In an attempt to promulgate this myth, many scientific journals refuse to publish anything that challenges the dogma of evolution.

And if any journal dares to publish a heretical paper, heads must role. For example, when Stephen Meyer sent a paper entitled “The Origin of Biological Information and the Higher Taxonomic Categories” to the small journal called Proceedings of the Biological Society of Washington, the editor (Dr. Richard Sternberg), sent it out for peer review. It passed peer review, and it was published. Then, a firestorm occurred. As the Washington Post says

Within hours of publication, senior scientists at the Smithsonian Institution — which has helped fund and run the journal — lashed out at Sternberg as a shoddy scientist and a closet Bible thumper.

Why did the firestorm occur? Because the paper discussed intelligent design in a positive manner. It doesn’t matter that the paper passed peer review. It doesn’t matter that the reviewers who didn’t even agree with intelligent designed called it meritorious and worthy of publication. The fact that it dared to question the dogma of the day was enough. Sternberg faced retaliation, defamation, and harassment because he allowed heresy to creep into the biological literature.

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A Million Visitors in Just Under Three Years – Amazing!

As anyone who reads this blog regularly knows, I have some problems with the Answers in Genesis ministry. At the same time, however, Jesus tells us that we must judge a tree by its fruit (Luke 6:43-45), and the fruits of the Answers in Genesis ministry show that it is a very good tree.

One of those fruits is the wonderful Creation Museum, which just recently welcomed its one millionth guest. This is a remarkable achievement, given the fact that the museum has been around for less than three years.

What makes the museum so popular? Well, unlike many museums, it actually makes its visitors THINK. Rather than just mindlessly repeating the dogma of the day regarding origins, it actually shows how strongly a person’s preconceived notions can affect the conclusions that he or she draws from the scientific data. It also has a lot of world-class displays, including one of the famous fish eating another fish fossils and an amazing discussion of the construction processes that could have been used by Noah to build the ark.

There are some things I don’t like about the museum, but they pale in comparison to the things I like about it. I know most evolutionists are furious about the Creation Museum, and it’s easy to understand why. The more people think, the less they will believe in evolution!

With Enough Faith You Can Believe Anything!

The fish in the above public-domain photograph is a ninespine stickleback fish. It gets its name from the nine spines that stick up from its back. A similar fish, the threespine stickleback, looks very similar but (you guessed it!) has only three spines sticking out its back. Both fish have two spines sticking down from their pelvis, but those spines are typically larger in the threespine stickleback. These similar species of fishes have shown us more examples of the failed predictions of evolution.

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Australopithecus sediba: An Extinct Ape

On April 8th, Scientific American’s website had a story entitled “Spectacular South African Skeletons Reveal New Species from Murky Period of Human Evolution.” In that post, the author said:

Scientists working in South Africa have unveiled fossils of a human species new to science that they say could be the direct ancestor of our genus, Homo.

So those who discovered the fossil think that it could be a direct ancestor of genus that contains modern humans. Do the data support this bold claim? Not at all. In fact, based on the actual fossils that have been published,1 A. sediba looks like nothing but a specialized form of extinct ape.

First, you need to understand the nature of these fossils. They seem to come from two individuals. One is assumed to be an adult female (and is called MH2), and the other is assumed to be a juvenile male (and is called MH1). To get an idea of what few remains we have from these two individuals, you should click on the link below, where the actual fossil remains are laid over sketches of what complete skeletons would look like.

Illustration of the actual fossils

So from the assumed juvenile male, we have a fairly complete skull, one fairly complete humerus, one fairly complete tibia, one fairly complete clavicle, and assorted bits from the spine, pelvic girdle, ribcage, femur, and feet. From the assumed adult female, we have a fairly complete humerus, a fairly complete radius, a fairly complete ulna, a fairly complete scapula, and assorted bits from the jaw, clavicle, spine, ribcage, pelvic girdle, femur, knee, fibula, and feet. That’s not much to go on.

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Still MORE Problems for Abiogenesis

A hydrothermal vent deep in the ocean. Some origin-of-life researchers hope that life could arise under such conditions.
Image from the NOAA.
I have blogged a lot about the myriad problems facing the idea that life arose naturally. Even those who want to believe in it admit that all origin-of-life experiments are miserable failures, producing only minute quantities of the simplest molecules of life, along with enormous amounts of “goo” that would be detrimental to life. Stephen Meyer’s seminal work, Signature in the Cell, points out the terrible informational problems that any origin-of-life scenario faces. Dembski and Wells point out that the very existence of so many different scenarios for the naturalistic origin of life indicate just how implausible it really is.

Now origin-of-life researchers face another huge problem – oxygen. You see, most evolutionists who accept scientifically irresponsible dating methods are confident of the fact that earth’s atmosphere didn’t have much oxygen in it until about 2.4 billion years ago. At that point, according to the evolutionary narrative, the evolution of photosynthesis allowed the carbon dioxide in earth’s ancient atmosphere to be converted into oxygen. This is called “The Great Oxidation Event,” and it is crucial to any evolutionary narrative.1

Why is this “Great Oxidation Event” crucial to evolution? Because all origin-of-life scenarios currently under consideration require earth’s atmosphere to be very low in or completely devoid of oxygen when life first evolved. A significant amount of oxygen would destroy any hopes of producing the molecules of life, as reactions with oxygen would convert them into chemicals that would not be useful in the chemistry of life.

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More on Slime Molds

About a month ago, I wrote about an interesting study on slime molds.

This organism is surprisingly intelligent!
(Image from KeresH at http://en.wikipedia.org/wiki/File:Dog_vomit_slime_mold.jpg)

Even though they have no brain or other kind of “central processing unit,” they can figure out what the most nutritious food is for them, and they can adjust their shape and eating habits to make sure they get as much nutrition as possible.

These results surprised many scientists, because slime molds are supposed to be primitive creatures.

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Those Nasty Footprints are Still Causing Problems

The Laetoli G footprints have always been a problem for evolutionists. Reported in 1979 by Dr. Mary Leakey1, these fossil footprints were made in volcanic ash, and they have always seemed to be the kind of footprints you would expect from unshod modern humans. So what’s the problem? Well, according to scientifically irresponsible dating techniques, the ash is somewhere between 3.6 and 3.8 million years old. According to evolutionary assumptions, modern humans didn’t exist back then, so obviously, the tracks couldn’t have been made by modern humans.

The only thing that would make an evolutionist think that, however, is the supposed age of the ash. Indeed, Russell Tuttle of the University of Chicago has studied the footprints in detail. In a 1990 article, he said:

In discernible features, the Laetoli G prints are indistinguishable from those of habitually barefoot Homo sapiens…If the G footprints were not known to be so old, we would readily conclude that they were made by a member of our genus, Homo.2

So even though they are “indistinguishable” from modern human footprints, evolutionists say they clearly can’t have been made by modern humans, because they are simply too old.

Because of the supposed age of the prints, many evolutionists assume they were made by Australopithecus afarensis or a closely-related species, since A. afarensis is assumed to be the most “human like” animal living at the time. The problem is that even with the most modern analysis to date, this makes no sense.

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Some Evolutionists Just Never Learn

You would think by now that even evolutionists would finally admit that there is very little (if any) DNA in a living organism that could be described as “junk DNA.” However, they are still out there doing it. For example, in a rather pathetic attempt to refute Dr. Stephen C. Meyer’s book, Signature in the Cell, evolutionary biologist Dr. Francisco Ayala made the following statement:

There are also lots and lots of DNA sequences that are nonsensical. For example, there are about one million virtually identical Alu sequences that are each three-hundred letters (nucleotides) long and are spread throughout the human genome. Think about it: there are in the human genome about twenty-five thousand genes, but one million interspersed Alu sequences; forty times more Alu sequences than genes. It is as if the editor of Signature of the Cell would have inserted between every two pages of Meyer’s book, forty additional pages, each containing the same three hundred letters. Likely, Meyer would not think of his editor as being “intelligent.” Would a function ever be found for these one million nearly identical Alu sequences? It seems most unlikely.

But the fact is that functions have been found for these Alu sequences and other sequences like them. It is amazing that an evolutionary biologist doesn’t seem to know this.

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99%? 95%? 87%? 70%? How Similar is the Human Genome to the Chimpanzee Genome?

I recently got an E-MAIL from a student who heard a “university professor” say that the human and chimpanzee DNA are 99% similar. She asked whether or not the professor was correct and, if not, how similar is human DNA to chimpanzee DNA?

Well, the answer to her first question is quite easy. The professor was horribly wrong. The nonsensical idea that human and chimp DNA are 99% similar comes from misinterpreting a 1975 paper by Mary-Claire King and A. C. Wilson. 1 This groundbreaking (for its time) article compared several proteins in chimpanzees to their equivalent proteins in humans.

In case you don’t know, proteins are complex molecules that are composed of many smaller molecules (called amino acids) linked together. The primary structure of a protein is simply the order in which its amino acids link up. King and Wilson showed that in many, many proteins, the difference in the primary structures of chimpanzee and human proteins was about 1%. Since DNA determines the order of amino acids in each protein an organism makes for itself, they made the reasonable inference that for the portions of DNA that code for those proteins humans and chimpanzees are 99% similar.

However, the genes that code for these proteins make up a tiny, tiny fraction of the human or chimp genome, and only SOME of those proteins were studied. Thus, the idea that one can extend that number to the entire genome and say that human and chimp DNA are 99% similar is just absurd.

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