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Just so we are clear on definitions, let me give an example:
Craig Venter "created" what he called "the first artificial cell" by stringing together DNA of one million molecules and inserting it into a cell which he had previously evacuated most or all of the native DNA. (google it) Now, suppose this cell undergoes numerous mutations during future years. Then, suppose a new researcher discovers this cell and inspects its DNA. Could he come to a correct conclusion about the origin of this cell?
What would you say is the true origin of the cell?
And the source of gravity and conservation of angular momentum? Eventually we'll get to uncaused first cause.
I have read a lot of opinions regarding the supposed veracity of evolution, usually without the term being defined. This failure to clarify meaning only leads to further misunderstandings. Remember that science is mans tool with which he tries to understand nature. Likewise, theology is mans tool with which he tries to make sense out of spiritual realities. Specifically, biblical theology is a tool to more fully comprehend the meaning of the Bible. It is important to realize that science and theology are both opinion-based endeavors.
Lets be clear: various constructions of creationism are essentially opinions based upon evidence from scripture and nature. Granted, various evidences are given different weights based upon prepositional biases or worldviews. Yet, to imagine that evolutionism does not exercise bias and presupposition and weighting of evidence, is simply not honest. It is also not honest to say that creationists dont do any real research.
I am going to post a challenge to any and all honest souls who would like to participate in some real research. I actually did some original research within the past year which any of you could replicate or add to. Since the advent of the internet, you really do not need to be a trained biologist with various degrees, such as I, to do this research. I wont even tell you my conclusionsyou can come to your own when you do the research for yourself. It involves genes and simulating the expected results of various mutations on them. I discovered an amazing phenomenon that has direct and profound impact on the theory of evolution, specifically related to origins.
I dont want to waste my time, so if 5 people or more would simply respond by agreeing to follow this through, I will walk you through the steps, which are not really hard to do. If you understand the basic concepts of DNA, the genetic code, mutations, and how DNA is read in order to turn its code into proteins/enzymes, then you should be able to keep up. All of these basic things can be gleaned from wiki and other easily-found web sources. If you are with me, just respond yes.
The vast majority of people who do not understand or accept evolution, do so because they fear the theory threatening a specific faith belief.
Some will never be ready and others, eventually are on their own time and place.
Sorry, but your result is neither new nor surprising. Frame-shift mutations are very well known to cause premature stop codons; google "indel" and "premature stop" and you'll find 475,000 hits. Since they tend to be quite disruptive, such mutations are usually weeded out by natural selection. They also represent a small fraction of mutations in coding sequence: most mutations are single-base substitutions, not insertions or deletions.The "engine of evolution" is said to be mutation and natural selection. A huge amount of confidence has been placed by evolutionists in the ability of this engine to accomplish virtually anything... like putting wings on dinosaurs! If this were true, this engine would have to be able and competent to create genes (and lots of them). Evolutionists often assume that once one gene or group of genes came into existence (never mind that they can't explain how), it/they could simply be duplicated and mutated in order to get other ones. What my research shows is that this idea is patently false. When I downloaded numerous gene sequences from various databanks and simulated a mutation near each one's beginning, something astonishing occurred related simply to their length. Almost every type of mutation that might result in a significantly new gene sequence has a high probability of destroying the previously-effective frame reading. When that happens, gene length gets shorter virtually every time--and a lot shorter. Genes that are hundreds of nucleotides long become only 20 or 30 long after mutation. Now, if mutation were really the engine of biological diversity, it would have to begin in the genes. If it were the real engine of gene creation, then nature should be full of very short genes, on average. In fact, just the opposite is true--the average human gene is around 27 thousand molecules in length. The Dystrophin gene is around 80 thousand. How in the world could mutations have created these, when mutations usually shorten things, not lengthen them?
You can replicate my research easily--google "gene databank" and pick your favorite one, or just the first 100-200 molecules in sequence. Copy and past this into your Word program, then begin to insert a space between each three letters, right after the start codon (ATG), so you can easily recognize when one of the three stop codons shows up (TAA, TGA or TAG). In the native gene, it only shows up at the end (hundreds or thousands of molecules along). Now, add a point-mutation right after the start codon, in the un-separated sequence--place an X there in that sequence. Now, separate the new sequence as before and look for the stop codons--magically, they appear all over the place at frequent intervals (about once every 21-23 codons, according to my studies). The same thing occurs whenever you add two X's (or subtract one from the original). These types of mutations disturb the "frame reading" of functional genes and create junk, not higher and better genes or creatures. Go to Wiki's site on frame shift mutations and see how many diseases are now know to be the result. And then ask yourself if natural selection is doing anything to improve these things in the population. Now, take this easily-verifiable knowledge of the effects of mutation and ask yourself if the "engine of evolution" is anything but a pipe-dream in the mind of people who ignore the cell biochemistry. This information represents, to me, the most powerful refutation of evolution, aside from small, mostly deleterious changes. Dino's could never sprout wings on their own because mutations are powerless to create the vast number of lengthy genes needed. BTW--recent evidence shows that there are 1500 genes which are different between chimps and humans. Is it rational to assume that this could have been produced by the "engine of evolution"? It's about time evolutionists studied their cell biology and chemistry and applied some real knowledge instead of wishful thinking.
Sorry, but your result is neither new nor surprising. Frame-shift mutations are very well known to cause premature stop codons; google "indel" and "premature stop" and you're find 475,000 hits. Since they tend to be quite disruptive, such mutations are usually weeded out by natural selection. They also represent a small fraction of mutations in coding sequence: most mutations are single-base substitutions, not insertions or deletions.
If you compare genes between humans and chimpanzees, you'll find that on average (median), each gene has five single-base differences between the two species that; of these, 2 change a single amino acid and 3 leave the amino acids alone. Only 5% of genes, or about 1000 genes, have an insertion or deletion distinguishing the two species. Of these, something like 98% do not cause frame shifts, since they insert or delete a multiple of three bases. And yet there are 35 million genetic differences between humans and chimps.
The kind of small insertions and deletions you're talking about are not a major mechanism for increasing the size of genes. Mutation of an existing stop codon can make genes longer, but larger scale mutations are (I think) more of a factor. These include rearrangements that combine parts of two existing genes, and the insertion of reverse-transcribed messenger RNA near an existing gene. Quite a lot is known about the birth of new genes, although there is much still to learn. You could start with this review to learn about the current state of knowledge.
Honestly, did you think that this sort of issue wouldn't have occurred to geneticists and evolutionary biologists, who spend most of their waking lives thinking about genes?
This response reveals a serious misunderstanding, I'm afraid. Damaging mutations, a category that includes many frame-shift mutations, are bad precisely because they hurt the organism. If you were born with a frame-shift in an important gene, you'll have problems: you'll be weaker, sicker, slower, dumber or less attractive than others of your species, or just plain dead. Any of which will mean you'll be less likely to pass on your mutation to offspring, which in turn makes it more likely that the mutation will vanish.SFS said; "Since they tend to be quite disruptive, such mutations [frame shift] are usually weeded out by natural selection."
Well, that is the typical boiler-plate response I've seen before. The problem with it is that natural selection operates on populations of living organisms, creatures, NOT on populations of genes. Natural selection is powerless to act within cells--it operates on the principle of survival of fitter ORGANISMS, not the genes within organisms.
Premature stop codons have nothing to do with the origin of life (which likely did not involve DNA at all), and nothing you've written has had anything to do with the origins of major living groups of creatures. I don't see what this comment is doing in this discussion.Certainly, the recognition of premature stop codons and frame shift mutations has been know about by many. The problem is that they have not thought it through in a mechanistic nuts-and-bolts fashion, applying the knowledge to supposed origins of life or origins of major living groups of creatures.
Don't be ridiculous. My reply assumed that very obvious fact.A point you also apparently neglected to consider is that ANY mutation of larger size that inserts anywhere in a previously function gene has a 2/3 chance of disturbing the frame reading and thus creating junk.
No, it doesn't. You really should learn about natural selection. It's what prevents damaging mutations from accumulating in genomes.Multiply that by just a few genes and the resultant genome quickly starts to become overwhelmed with junk.
I'm also aware that the ENCODE project showed that most of the genome was biochemically active, not that its sequence made any difference to the organism. Or rather, only one of the ENCODE papers attempted to estimate how much of the genome actually mattered, this one by Manolis Kellis's group; that paper concludes that ~10% of the genome has real function, in the sense meant by most people. (I've discussed this issue with members of the ENCODE consortium at length, by the way.)You might be aware of the results of the ENCODE project--indicating that very little "junk DNA" is actually present in genomes (contrary to previous thoughts).
Keep going -- you're almost there. What do you think happens to the bad mutations when the organisms carrying them die? Are they magically transported to other organisms, or do they die too?Considering the results of frame shifts, how do you suppose that genomes got so "cleaned up"? Natural selection doesn't work at the gene level--genes don't compete for sustenance and survival and they don't die individually while leaving other individual genes to take their place. There is no mechanism within cells to determine whether a particular gene will add or subtract from the cell or organism's eventual survival. There is no INTERNAL selection pressure to clean up genomes. Selection pressure is applied only to the complete cell or organism--it lives or dies, in competition with other cells or organisms, based upon the sum total of its genome.
Competition for light, for space, for nutrients, for water. Competition to resist insects and other animals trying to eat them. Competition anyone can observe in any forest.Furthermore, way too much faith is put in the supposed competition between cells and organisms. For example; what kind of competition exists or could ever have existed within the plant kingdom so as to produce the myriad of species we see today?
The evolution of anti-freeze glycoproteins in Antarctic toothfish is a good example. These evolved from a gene encoding a pancreatic trypsinogen, which normally has nothing to do with preventing an organism from freezing:So, there is an enormous amount of speculation about how the myriads of very long genes could have originated in the millions of different creatures, over whatever length of time you might suppose. Genes could have been accidentally duplicated and then spliced into other genes, creating something entirely new. The question which should always be asked in these cases is where the pure unadulterated science ends and the SAS begins. Can the speculative mechanism actually be observed and repeated? Have we witnessed such a thing occurring in the laboratory? Can you show me genomic data from before and after, which rules out other mechanisms, such as Craig Venters alterations of the DNA?
The one assumption we make in science is that natural phenomena are explainable by natural means. In other words, we ignore the supernatural. We assume that if we drop a ball, a god or spirit isn't going to grab it and slow its fall. This is called methodological naturalism. We make this assumption so that we can test the predictions of our hypotheses and theories. Otherwise, all you have is endless speculation, like we see among creationists here... with no means of determining which hypothesis is correct, or closer to reality.The honest answer to most probing questions like these is; nope. Duplicate copies of many genes have certainly been seen in various plants and animals. Do you think that they might have a designed purpose? That possibility is never considered by naturalists. It violates their presuppositions. Therefore, the only speculation they allow is that it is always accidental and must represent part of the engine of evolution.
According to current theory, genes don't evolve out of non-coding regions alone. Therefore we should not expect that Lenski's experiments would have resulted in a brand new gene with no antecedent in any other functional elements.Have they witnessed this engine actually creating an entirely new, unique and useful gene? Perhaps Richard Lenskis experiments involving over 35,000 generations of E. coli showed us this mechanism in action. Nope and nope. In his results, not even one new set of start and stop codons were generated, with something novel in between. That fact alone should cause evolutionists to bridle their sassiness.
Sure, any molecular geneticist can create a sequence and put it into a genome and it could look like something that evolved, if you did it so it looked similar to a natural sequence. So what? If that occurred in any species on this planet, then you will have to show that this is the case. If we are the result of such tinkering, for example, you will have to provide evidence that this is the case. Otherwise, all you have is the speculation you decry and what amounts to a violation of methodological naturalism.For too long evolutionists have confused or conflated associations or similarities with causation. In all likelihood, Craig Venters million-long DNA creation which he inserted into several native cells contains sections which appear very similar to native sequences. Is anyone going to tell Venter that he didnt really create anythingthat everything within those altered cells is actually a product of evolution only? Plenty of plausible speculation could be offered as to how evolution might have done it. The problem is that the speculation would be wrong, as speculation often is. Hence, we see the need to always keep our minds keen and vigilant to separate pure science from the adulterations which frequently accompany it.
There are a number of factors which cause genetic disorders and cancers to persist (at relatively low levels). First, there is a low level of genetic mutation or non-disjunction that will always ensure there are some genetic disorders in the population. If a genetic disorder does not prevent an individual from reproducing, then it will in fact be passed on. There are even some cases in which a genetic disorder is actually selected for, as is in the case of sickle-cell in malaria prone regions.It's also helpful to avoid pedantic condescending ad hominem and instead engage with the substance of the contended issue at hand. SFS's beliefs about how natural selection works are just that -- beliefs. Natural selection is doing nothing to clear the faulty genomes of muscular dystrophies and many cancers, etc., either inside their cells or in the population of human beings. Most of these individuals reproduce before they die. The fact is that evolutionists have no valid explanation for abiogenesis, nor the origins of multitudes of genes and epigenetic elements which far exceed the measly tinkering which mutations offer.
That is a very tall order and we cannot currently to this. That does not mean it will not be possible in the future, however. Why are you requiring such a high standard for evolutionary biologists, but not for intelligent design advocates?I am not aware of any comprehensive application of evolution theory which honestly lays out a multiple step-by-step set of transitions from one life-form to another, say a bacteria to a paramecium or any such pair, accounting for where the huge amount of new genes, many of them very lengthy, came from. Hint: Craig Venter knows how to do it.
Who is to say indeed? Show us these alien intelligent agents or the evidence of their actions and we will be happy to consider it as something more than a speculative alternative.Who's to say there aren't minds outside of our galaxy which far surpass Venter's intelligence.
Of course intelligent design works.. we've been using it for thousands of years. Now provide the positive evidence that is was a factor in human or some other species' current existence. Otherwise you are the one speculating.Venter showed us that intelligent design works. What's inhibiting you from believing in a greater intelligence? This proposition accounts for the evidence in all areas--abiogenesis and major life forms. Certainly many mutations did some tinkering along the way and natural selection worked a little here and there.
Science tells us the world formed about 4.5 billion years ago...
The evolution of anti-freeze glycoproteins in Antarctic toothfish is a good example. These evolved from a gene encoding a pancreatic trypsinogen, which normally has nothing to do with preventing an organism from freezing:
No ice in their veins
Origin of antifreeze protein genes: A cool tale in molecular?evolution
Whether these did come about through natural selection or were created that way, it is in no way an example of Darwinian evolution.
The fish is still a fish. All you have is a variety of different fish. Exactly
how natural selection is supposed to work, and does work.
Whether these did come about through natural selection or were
created that way, it is in no way an example of Darwinian evolution.
The fish is still a fish. All you have is a variety of different fish. Exactly
how natural selection is supposed to work, and does work.
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