Originally posted by: Riprorin
Sickle-cell anaemia does not prove evolution!
Dr Felix Konotey-Ahulu, M.D. (Lond.), FRCP, DTMH, is a world authority on sickle-cell disease, with 25 years? experience as a physician, clinical geneticist and consultant physician in Ghana and subsequently in London. He is a visiting professor at Howard University College of Medicine in Washington, and honorary consultant to its Center for Sickle Cell Disease. He is the author of a major 643-page text, The Sickle Cell Disease Patient (Macmillan, 1991, ISBN 033339239-6).
This article is abstracted with Dr Konotey-Ahulu's permission from pages 106-108 of his book.
Excuse me! Is this the same Felix Konotey-Ahulu who claims there really isn't an AIDS epidemic in Africa? Who sides with the fringe "scientists" who claim that sex and HIV don't cause AIDS?
Originally posted by: shoegazer
"500 doctoral dissertations were written on Piltdown man
This claim appears in creationist sources. Gary Parker's pamphlet "Origin of Mankind", Impact series #101, Creation-Life Publishers (1981) makes the claim without qualification or source. Lubenow's Bones of Contention (1992) remarks that it is said that there were 500 doctoral dissertations but does not give a source.
This claim is clearly in error. When one considers the small number of PhD's in paleontology being granted currently and the even smaller number 80 years ago and the diversity of topics chosen for PhD theses a figure of half a dozen seems generous; in all probability there were none whatsoever. John Rice Cole notes that in the 20s there were about 2 dissertations per year in physical anthropology in the entire US on ANY topic."
http://home.tiac.net/~cri_a/piltdown/piltdown.html#doctoral_theses
Originally posted by: dannybin1742
rip still did not answer my previous questions, he simply side steps them becuase he knows we know how he will answer, which will make him look like the nut he is
yeah i forgot to add that in my last post, i knew i recognized that guy's name
Excuse me! Is this the same Felix Konotey-Ahulu who claims there really isn't an AIDS epidemic in Africa? Who sides with the fringe "scientists" who claim that sex and HIV don't cause AIDS?
Originally posted by: Whaspe
Noone here was pinning their entire case on just sickle cell anemia. It was Rip who admitted demonstrated natural selection and is a good example on the broadness of "fit." We can argue back and forth over it's advantages or disadvantages all we want.
Sickle cell was only one of my examples but what about my other: The CCR5 mutation.
Edited for clarity
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Originally posted by: Riprorin
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Can you give me some examples that were used from the fossil record to prove that macroevolution occured?
Originally posted by: Whaspe
Noone here was pinning their entire case on just sickle cell anemia. It was Rip who admitted sickle cell anemia demonstrated natural selection and was a good example on the broadness of the definition of "fit." We can argue back and forth over it's advantages or disadvantages all we want.
Sickle cell was only one of my examples but what about my other: The CCR5 mutation.
Edited for clarity
Originally posted by: 3chordcharlie
Originally posted by: Riprorin
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Can you give me some examples that were used from the fossil record to prove that macroevolution occured?
He could - they would probably be the same ones you've already been shown in this thread and others.
Originally posted by: Riprorin
Originally posted by: 3chordcharlie
Originally posted by: Riprorin
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Can you give me some examples that were used from the fossil record to prove that macroevolution occured?
He could - they would probably be the same ones you've already been shown in this thread and others.
Summarize them from me. I don't have time to hunt through all of the threads.
Originally posted by: 3chordcharlie
Originally posted by: Riprorin
Originally posted by: 3chordcharlie
Originally posted by: Riprorin
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Can you give me some examples that were used from the fossil record to prove that macroevolution occured?
He could - they would probably be the same ones you've already been shown in this thread and others.
Summarize them from me. I don't have time to hunt through all of the threads.
Don't patronize me, you're better then that. These things have been raised in this thread and the ID thread, and you have either ignored them or tried to explain them away. Don't ask for evidence if you're going to refuse to consider it.
By the way, your dismissal of the CCR5 is premature, but even if we accept that it is not evidence of evolution, how, exactly, is it evidence of intelligent design?
Originally posted by: Riprorin
If you want to point out evidence in the fossil record that supports macroevolution I'll be happy to try to offer a rebutal.
I didn't read the reference, but I suppose that it supports ID because it demonstrates the adptability of organisms inherent in their design.
Originally posted by: Riprorin
Originally posted by: Whaspe
Noone here was pinning their entire case on just sickle cell anemia. It was Rip who admitted sickle cell anemia demonstrated natural selection and was a good example on the broadness of the definition of "fit." We can argue back and forth over it's advantages or disadvantages all we want.
Sickle cell was only one of my examples but what about my other: The CCR5 mutation.
Edited for clarity
Found this explanation:
One of the most important and most studied cell receptors is the cell-surface chemokine receptor 5 (CCR5). CCR5 functions as a receptor for chemokines, and also affects a cell?s susceptibility to HIV infections (Schliekelman, et al., 2001). A mutation in the receptor that
leads to the loss of a 32 base-pair section (called a 32 mutation) results in a nonfunctional
receptor. As a result, the cell is largely immune to the AIDS virus. This mutation is believed to have been selected for in Europe during the last 700 years because it also evidently reduces susceptibility to bubonic plague (Schliekelman, et al., 2001). Schliekelman, et al. (2001) conclude that even heterozygous CCR5 carriers are completely resistant to the plague organism or similar pathogens. This damaged receptor also makes the cell less fit in a virus free environment, but in a pathogen-rich environment it can survive. Implications Recent research into the development of virus resistance does not support Neo-Darwinism which is classically defined as the natural selection of mutations. Macroevolution requires information-building mechanisms that add new information to DNA. In virtually all cases, resistance is a result of the exploitation of existing systems, or is due to a transfer of genes. In the rare cases where a mutation is involved, development of resistance involves only a loss mutation, such as a deformed cell receptor. This conclusion is confirmed by the fact that resistance is acquired very rapidly, in far too brief a period for the emergence of complex biochemical or physiological systems by evolution. Furthermore, mutation- caused resistance results in less viability in the wild and, as a result, the resistant strains cannot compete in a normal
environment (Spetner, 1997). The acquisition of resistance does not provide evidence for macroevolution, but rather provides support for intelligent design (Cornaglia, et al., 2000).
Link
Originally posted by: Riprorin
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Can you give me some examples that were used from the fossil record to prove that macroevolution occured?
Originally posted by: 3chordcharlie
Originally posted by: Riprorin
If you want to point out evidence in the fossil record that supports macroevolution I'll be happy to try to offer a rebutal.
I didn't read the reference, but I suppose that it supports ID because it demonstrates the adptability of organisms inherent in their design.
You've already asked for 'transitional fossils' been given several examples (e.g. small raptors with feathers, strongly suggesting a link between dinosaurs and birds).
The answer to the second question is that the evidence neither supports nor detracts from ID, if that is, you first discount that it does support evolution: mutation causing functional changes, followed by selection and propogation.
Originally posted by: shira
Originally posted by: Riprorin
Originally posted by: cryptonomicon
personally, all the fossil records i have seen from my anthropology class makes it pretty obvious that evolution was real
Can you give me some examples that were used from the fossil record to prove that macroevolution occured?
Rather than having us waste our time flooding you with evidence that you'll continue to discount, why don't YOU tell US what hypothetical evidence would in your eyes "prove that macroevolution occurred". Be specific.
Originally posted by: Jmman
I am not going to attempt to offer evidence for either case, but I do find it interesting that a huge percentage believe "unquestioningly" that evolution is 100% correct. I guess I am smart enough to know that virtually nothing can be 100% proven, and especially not evolution. That being said, there is probably more evidence to support evolution as opposed to ID. Feel free to continue your bickering now......![]()