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| Author | Topic: A test for claimed knowledge of how macroevolution occurs | |||||||||||||||||||||||||||||||||||||||||||||||||||
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ringo Member  Posts: 16626 From: frozen wasteland Joined: Member Rating: 3.0 |
A variation in the genome IS a change in the genome. All that are in Hell, choose it. -- CS Lewis That's just egregiously stupid. -- ringo
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Faith Member  Posts: 31651 From: Nevada, USA Joined: Member Rating: 1.1 |
Nope Not unless it's a change in the structural part which is supposedly the HOX genes? But I understand they are resistant to mutations and usually produce monsters anyway, llke rearranging the body parts of fruit flies. Edited by Faith, : No reason given. Edited by Faith, : No reason given.
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ringo Member Posts: 16626 From: frozen wasteland Joined: Member Rating: 3.0 |
Yup. All that are in Hell, choose it. -- CS Lewis That's just egregiously stupid. -- ringo
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Tangle Member  Posts: 6880 From: UK Joined: Member Rating: 4.1 |
I've shown you observed evidence that it is not impossible - both the selection method and the genetic mutation. See peppered moth. Je suis Charlie. Je suis Ahmed. Je suis Juif. Je suis Parisien. I am Mancunian. I am Brum. I am London.I am Finland. Soy Barcelona "Life, don't talk to me about life" - Marvin the Paranoid Android "Science adjusts it's views based on what's observed.
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Percy Member  Posts: 18482 From: New Hampshire Joined: Member Rating: 2.8 |
As others have mentioned, breeding doesn't involve mutations. Sure, occasionally a breeder gets a mutation, they're random, they can happen at any time. In fact, every reproductive event involves mutations, it's just that most of them have no effect. Mutations that cause a change are very rare in breeding. But you said "given unlimited time," so Stile suggested an experimental program (it would have to last for billions and billions of years) that could be repeated over and over and over again until a rodent evolved into a whale. But this program would never be successful because of several problems. First, whales didn't evolve from rodents but from a now extinct ungulate (a hoofed animal), i.e., it no longer exists. Second, even if this ungulate did exist, because mutations are random repeating the experiment is unlikely to produce whales, just as Stile suggested, except it's even more unlikely than that. I think the universe would end first. Third, even if this original ungulate did exist, we couldn't keep it unchanged from one run of the experiment to the next because it would evolve too. The only way to actually run the experiment is to begin with an infinite number of ungulates and run an infinite number of these experiments simultaneously. And Fourth, we don't know the details of the changing environments that occurred in sequence, including the now extinct plants and creatures that populated them. Even if we did, they don't exist anymore. That is, we don't know what the selection pressures were, and even if we did we couldn't reproduce them.
Since breeding leaves mutation out of the equation you are absolutely right that there are limits to the degree of changes breeding can effect.
Through mutation. --Percy
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Taq Member  Posts: 7882 Joined: Member Rating: 4.1
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All we would need to do is have the genomes from every generation along the way and engineer those mutations into a new population, generation by generation. In other words, we would need to take millions of years to replay the evolutionary history.
Thousands of years of breeding is not enough time to produce the needed variation. You have already been told this many, many times. Why do you continue to ignore it?
You have never supported this assertion.
It is overcome by selection over millions of years.
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Taq Member Posts: 7882 Joined: Member Rating: 4.1
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Then how do you explain the physical differences between humans and chimps if it isn't due to genetic differences between the two species?
Yes. The genetic differences between humans and chimps, as an example, is consistent with the time since divergence and the observed mutation rate.
Beneficial mutations are kept, detrimental mutations are removed, and neutral mutations fix at random. Why wouldn't this process be able to add beneficial mutations over time?
Already done. Again, the genetic divergence between chimps and humans is consistent with the mutation rates in both species.
Show us a single genetic difference between chimps and humans that could not be produced by the observed processes of mutation. I bet you can't point to a single one. That's our proof.
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Taq Member Posts: 7882 Joined: Member Rating: 4.1
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1. I can cite multiple papers that map on going mutations in living species. I would think that you already accept this fact, but if not I can supply those papers. Do you accept that mutations happen? 2. Since mutations happen, they will happen throughout the genome. No part of the genome is protected from mutation. Therefore, the bases that differ between alleles are open to mutations, just as every base in the genome is open to mutation. 3. Therefore, it is complete lunacy to think that mutations can't produce the differences between alleles, or the differences between species.
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Percy Member Posts: 18482 From: New Hampshire Joined: Member Rating: 2.8 |
Just the assertion alone indicates a simple but essential point is not understood, that deleterious mutations happen to individuals who don't get to pass their genes on to any progeny. --Percy
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Tanypteryx Member  Posts: 2223 From: Oregon, USA Joined: Member Rating: 4.5
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Rare on whose scale? The mutations that occur in the reproductive cells are the only mutations that we are talking about. They are the only ones involved with evolution.
Yes, they add to the variation that is already in the genome, creating a new allele.
Nope, this is incorrect. We don't need anything, but what we do get is incremental changes (mutations) in the genome and phenotype that survive in succeeding generations. Some genome/phenotypes in a population will produce fewer or no offspring and will be eliminated by natural selection. Mutations are random, but natural selection is not because it selects the best reproducers.
Well, that's because you have the scenario wrong.
Mainly because such a random event is not how it happens.
This is incorrect. It is not a mutation here and a mutation there. If we use humans as an example, there are on average 100 mutations in every individual in a population. If we take the population of reproducers as 1 billion people, they have a combined 100 BILLION NEW MUTATIONS in just their generation of our population. If you take the whole human population there are 750 BILLION NEW MUTATIONS right now. In just 1 million years that is a humongous number of mutations in a population. Now I realize that a population size will always fluctuate but to pretend that there are just a few mutations here or there is delusional.
Really? We would love to see you calculate that. And what are the organizing powers of billions of years. This is a concept I am completely unfamiliar with. What if Eleanor Roosevelt had wings? -- Monty Python One important characteristic of a theory is that is has survived repeated attempts to falsify it. Contrary to your understanding, all available evidence confirms it. --Subbie If evolution is shown to be false, it will be at the hands of things that are true, not made up. --percy The reason that we have the scientific method is because common sense isn't reliable. -- Taq
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AZPaul3 Member  Posts: 4097 From: Phoenix Joined: Member Rating: 3.6 |
Sure. I'll do that ... if you do something first. Prove to me your god exists. If you succeed in doing the easy one I'll do the hard one. Eschew obfuscation. Habituate elucidation.
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RAZD Member  Posts: 19869 From: the other end of the sidewalk Joined: Member Rating: 5.5
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.. fact (there, corrected it for you). This has been observed, and you keep ignoring it or dismissing it. The trouble is creationists don't want just a new species, the want something more impressive - exemplified by the OP:
... to reconnect to the op of this thread (not another faith-olution fantasy thread). The answer lies in mutation and selection, which in turn requires multiple generations ... for each of the multitude of speciation evolutions required along the way. As noted in Message 3, "If we are going to simulate natural selection with breeding, then we should also simulate mutation with genetic engineering." Expanding on this the process, the implied simulation of the actual known natural history of evolution of whales on earth would entail:
Note that this is a "do-loop" in programing language, repeating simple steps until the desired result is obtained or the world ends. It should be stunningly obvious that this would be a massive undertaking that would span hundreds if not thousands or even millions of generations of dedicated scientists ... ... simply to prove to thickheaded creationists that evolution really happens, that the evidence available is large and increasing every day, and it shows that evolution has happened in the past, and that the Theory of Evolution is the best known explanation for the diversity of life as we know it, from the genetic evidence, from the fossil evidence, from the changes in life observed in history and pre-history.
What stunning arrogant nonsense, based on wilful ignorance, of course. Of course you have been answered, many times - you just ignore it. Both of you. Enjoy Edited by RAZD, : No reason given. by our ability to understand Rebel☮American☆Zen☯Deist ... to learn ... to think ... to live ... to laugh ... to share. Join the effort to solve medical problems, AIDS/HIV, Cancer and more with Team EvC! (click)
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Faith Member Posts: 31651 From: Nevada, USA Joined: Member Rating: 1.1 |
Your answers are all speculative, all nothing but evo daydreams. They are not science, they are pretend science. There's no reason to think you'd get anything whalelike at all, depending on mutations for this, even through hundreds of trials. This is an article of faith, this is not science. It can't happen. Mutations can't do anything that organized, in concert with one another. It can't happen. More likely your rodent is just going to get tired of being wet and long since would have emigrated to a more congenial climate. Edited by Faith, : No reason given. Edited by Faith, : No reason given.
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Dredge Member  Posts: 1131 From: Australia Joined: Member Rating: 1.0 |
Quite right - it's evolution by artificial selection. I can't see why an naturally-occurring evolution couldn't theoretically be repeated by a human breeding program - assuming unlimited time is available and the evolutionary mechanisms and direction are known.
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AZPaul3 Member Posts: 4097 From: Phoenix Joined: Member Rating: 3.6
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That is kinda what RAZD was saying. You may well run out of universe before repeating what nature already did. I'm not sure you understand the implications. If the clock were wound back to do it all again, humans would not be here. There were a mindbogglingly large number of paths history could have taken in the past 4 billion years. Humans were only one possibility that did not have to happen given the number of equally likely alternatives. But for a lot of luck and the spooky actions of QFT your god would never have been fantasized.
Most of them sure. But this is nature we're talking about. Not everything is perfect. Some were likely to stick around in that lovely wet in all those oceans with all that food. Presto-changeo. Whales. Well, ok, millions of years of presto-changeo.
And yet it did. And not just whales but every critter on this planet went through the same thing. Chemistry is amazing. Eschew obfuscation. Habituate elucidation.
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