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Author | Topic: A test for claimed knowledge of how macroevolution occurs | |||||||||||||||||||||||||||||||||||||||||
dwise1 Member Posts: 5192 Joined: Member Rating: 3.0
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Why did you avoid answering his question? What is your point? Other than demonstrating how much you misunderstand evolution. According to evolution, all of an ancestral species' descendant species will still be what that ancestral species is. Future species descended from humans will still be humans. Future species descended from dogs will still be dogs. Therefore, humans are still Homo, also still Hominini, also still Homininae, also still Hominidae, also still Hominoidea, also still Catarrhini, also still Simiiformes, also still Haplorhini, also still Primates, also still Mammalia, also still Amniota, also still Mammaliaformes, also still Synapsida, also still Amniota, also still Reptiliomorpha, also still Tetrapoda, also still Stegocephalia, also still Elpistostegalia, also still Eotetrapodiformes, also still Tetrapodomorpha, also still Rhipidistia, also still Sarcopterygii, also still Euteleostomi, also still Teleostomi, also still Eugnathostomata, also still Vertebrata, also still Olfactores, also still Chordates, also still Deuterostomes, also still Nephrozoa, also still Bilateria, also still Eumetazoa, and also still Animalia. And all future descendant species of humans will still be humans and also all of the above. That is what evolution says. Your expectation that evolution says that should not be the case only demonstrates that you do not understand even basic evolution. Furthermore, you persist in that misunderstanding despite the truth about what evolution says having been explained to you repeatedly. So answer Tanypteryx' question: What's your point? Edited by dwise1, : Added qs blocks
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RAZD Member (Idle past 723 days) Posts: 20714 From: the other end of the sidewalk Joined: |
That was to Faith, not Dredge
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RAZD Member (Idle past 723 days) Posts: 20714 From: the other end of the sidewalk Joined:
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So you want to breed a whale that lives on dry land. Fascinating show of ignorance. To replicate what occurred in the evolution from an even-hoofed ungulate (not a rodent) you need to replicate the ecological changes that occurred as well, or your artificial selection will not be capable of replicating what natural selection did. Whales don't live on dry land, or are you unaware of that as well.
Wrong. We do know how macroevolution occurs. Remember this (I've posted it to you before): The process of evolution involves changes in the composition of hereditary traits, and changes to the frequency of their distributions within breeding populations from generation to generation, in response to ecological challenges and opportunities for growth, development, survival and reproductive success in changing or different habitats. The process of anagenesis -- lineal evolution -- with the accumulation of changes over many generations, is an observed, known objective fact, and not an untested hypothesis. The process of cladogenesis -- divergent evolution -- with the subsequent formation of a branching nested genealogy of descent from common ancestor populations is an observed, known objective fact, and not an untested hypothesis. This means that the basic processes of "macroevolution" are observed, known objective facts, and not untested hypothesies, even if major groups of species are not observed forming (which would take many many generations). The Theory of Evolution (ToE), stated in simple terms, is that the process of anagenesis, and the process of cladogenesis, are sufficient to explain the diversity of life as we know it, from the fossil record, from the genetic record, from the historic record, and from everyday record of the life we observe in the world all around us. Again, if you really want to replicate what occurred you have to replicate the random mutations that occurred (changes in the composition of hereditary traits), as the likeliness of them reoccurring randomly are as close to zero as any IDologist would have an orgasm over. The only reasonable way to replicate that is to genetically engineer mutations that would increase similarity between genomes of your even-hoofed ungulate (not a rodent) and whales. If you're going to simulate natural selection with artificial selection to simulate evolutionary history, then you need to simulate natural mutation with artificial mutation or your simulation is a half-vast model doomed to failure. Again, Fascinating show of ignorance.
And wrong again. Evolution occurs by trial and error, so to replicate it you need to involve trial and error. You need trial and error to provide a basis for your artificial selection or all you will accomplish is in-breeding and your simulation would be a half-vast model doomed to failure.. So, again, yet another Fascinating show of ignorance. Enjoy 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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RAZD Member (Idle past 723 days) Posts: 20714 From: the other end of the sidewalk Joined:
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BWA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA-HA Enjoy 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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Percy Member Posts: 20975 From: New Hampshire Joined: Member Rating: 3.4
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After all the corrections it is perplexing that you persist in these errors:
First, whales are thought to have evolved from a now extinct ungulate, not a rodent. Putting quotation marks around rodent does not turn it into an ungulate. Both rodents and ungulates are mammals, but that's about all they have in common. In particular ungulates are hoofed, rodents are not. Second, breeding by itself could never turn an ungulate into a whale because breeding doesn't include mutations. Third, because mutations are random, resetting the world back back to the time of the ungulate whale predecessor and then letting time run forward again would produce a different set of random mutations that experience selection pressures differently, not just in the ungulate whale predecessor but in all life. You would be very unlikely to get whales or wolves or squirrels or elephants or people. No matter how many times you reset to the initial conditions and repeat the experiment, you're very unlikely to get whales or anything like the world of life we see today. You would get other creatures filling the same ecological niches.
No one believes that. Seriously, what would you say is the reason you're ignoring the many explanations of the mistakes you're making? --Percy
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Percy Member Posts: 20975 From: New Hampshire Joined: Member Rating: 3.4
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It's not splitting hairs, and no science article or paper would call an ancient ungulate a "rodent-like creature." Today the earliest whale ancestor is thought to be Pakicetus, an ancient ungulate with small hooves on the end of its toes. In the interest of accuracy you should describe the ancient whale ancestor as a now extinct ungulate or as Pakicetus.
Breeding, because it lacks mutations, could never produce a genetically new species.
This is an incomplete sentence. Could you repeat the question?
If breeding is the only option, it couldn't be done. If genetic engineering is included then theoretically it could be done, but we don't know what huge portions of any genome even do, so on a practical level it would still be impossible, at least with today's level of genetic knowledge.
Whales have characteristics that Pakicetus did not. You cannot select characteristics that don't exist. It isn't possible to get a whale from Pakicetus through breeding. But more important is the earlier point that mutations are random. If in your hypothetical experiment the breeding program lasts for millions of years then mutations will occur naturally, but mutations are random and will not be the same ones that led to whales.
No, mutations are not responsible for the variety of dogs. Breeding relies on selecting for qualities that already exist in the animal. Breeders are definitely not producing generation after generation of animal waiting for a mutation that yields the quality they want, perhaps a spotted coat or pointy ears. While mutations are part of every reproductive event, the vast majority have no effect, and those that do do not usually result in viable offspring. They either abort very early, even before pregnancy is detected, or die in the womb or die young. Beneficial mutations are rare. Beneficial mutations that are exactly what the breeder wants would be nearly impossibly rare. Dogs are still wolves. You're going to have to correct your misunderstanding of breeding before the discussion can make meaningful progress. --Percy
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edge Member (Idle past 1024 days) Posts: 4696 From: Colorado, USA Joined: |
I"m sorry that my questions are so difficult for you. Since you have so many other responses, I'll withdraw my question for the time being. Not that I think you had any intention of answering, though.
Hmm, I thought it was 19. ![]()
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Tanypteryx Member Posts: 3435 From: Oregon, USA Joined: Member Rating: 4.2 |
Breeding is not a surrogate for evolution.
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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Tanypteryx Member Posts: 3435 From: Oregon, USA Joined: Member Rating: 4.2 |
Breeding is not a surrogate for evolution.
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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caffeine Member (Idle past 343 days) Posts: 1800 From: Prague, Czech Republic Joined:
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Hi Faith. I'm still struggling to understand the disconnect here, and to get my head around what you think a genome is. You tell us to "give us a series of mutations that could change the chimp genome into the human genome"; but then say. "you can't just point out the differences". This is incoherent. Listing the differences between two genomes is listing the series of mutations that could change one into the other. Obviously we're not going to list them, because there are lots. The differences between the human and chimp genomes are thirty-five million single-nucleotide differences, five million insertions or deletions, one chromosomal fusion, and about 10 chromosomal inversions. So, the mutations needed to change one to the other would be those 35 million SNP mutation, those five million insertions or deletions, one chromosome fusion (or fission, depending on which direction we're going) and those 10 inversions. I know you don't believe that these mutations are the actual cause of the difference between the two, but that's not the point. Nor do we, since we don't think the human genome evolved from the chimp genome. You'd asked for a hypothetical list of mutations that could turn one to the other. How can we provide a hypothetical list of mutations to turn genome A into genome B if we're not allowed to list the mutations that would be necessary to turn genome A into genome B?
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ringo Member Posts: 19752 From: frozen wasteland Joined: Member Rating: 2.9
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It's actually a triple play: rodent to ungulate to whale. The problem with trying to breed that change is that we don't know all of the steps along the way. If you walk from New York to San Francisco, we know you stopped at Detroit and Chicago and St. Louis and Denver because we have time-stamped pictures of you in each of those places. But we don't know the exact route that you took from New York to Detroit or from St. Louis to Denver, etc. We do know that you went from New York to San Francisco. All that are in Hell, choose it. -- CS Lewis That's just egregiously stupid. -- ringo
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dwise1 Member Posts: 5192 Joined: Member Rating: 3.0 |
What the hell are you talking about? Breeding does not involve inducing any mutations. Obviously, we need to add mutation, breeding, and genetics to the long list of things that you have no clue about. What kind of blithering idiot are you? Oh yeah, you're a creationist. Your only true statement is that you are an extremely low-grade moron with an IQ of 9, though even that is obviously an exaggeration (ie, it's obviously much lower).
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Percy Member Posts: 20975 From: New Hampshire Joined: Member Rating: 3.4 |
Such problems are not due to mutation. They're due to the selection process. For example, some of the characteristics selected for in the German Shepherd were linked genetically to hip dysplasia. There is no hip dysplasia mutation. The alleles for hip dysplasia were already present in the wolf genome, but selection and inbreeding has made them more prevalent in the German Shepherd.
Before we can have a productive discussion you're going to have to understand that mutation plays a nearly zero role in breeding. --Percy
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Stile Member Posts: 4083 From: Ontario, Canada Joined: Member Rating: 4.6
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Of course not. quote: Just as one can easily know how electricity works without knowing how to build a nuclear power plant (thanks, Tanypteryx!) Your "fact" is contradicted by reality.
Your issues are all about specifics that don't matter for knowing how macroevolution works. You were the one who said "unlimited time" was available. Your credibility dives once again - this time caught by your own rule Therefore, the answer to your question on the macroevolution involved in going from rodent-to-whale still stands, no changes required: quote: You need to work on your replies.
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caffeine Member (Idle past 343 days) Posts: 1800 From: Prague, Czech Republic Joined: |
Several people have said this, but I think it's a bit of an exagerration. Animal breeders cannot cause mutations, of course; but there are several known examples of them taking advantage of naturally occurring mutations. The stumpy legs of sausage dogs, for example, or the hypertrophied muscles of Belgian Blue cattle, were naturally occurring mutations that breeders seized upon and preserved. I'm sure that many mutations have been involved in the creation of our domestic breeds - the examples mentioned are just particularly easy to find since they would be so obviously maladaptive in nature. And with modern knowledge of genetics, breeders don't necessarily wait for mutations, either. Plant breeders will expose plants to radiation or chemical mutagens to induce dramatically higher mutation rates. Obviously they can't target what mutations appear, so much of what's produced is worthless; but by inducing massively increased mutation rates agronomists can find in a few years useful mutants that might have taken millennia to crop up naturally (pun intended). There are thousands of commercially available strains of grains and tubers developed by this method.
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