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Author Topic:   Is Evolution Intellectually Viable?
sprout
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Message 89 of 91 (220700)
06-29-2005 1:35 PM
Reply to: Message 88 by Percy
01-24-2003 12:26 PM


PrimatePaul wrote that scientists created pre-biotic conditions and the beginning of life? Give me your references to this please. Simple Homochirality is but one of a thousand problems facing abiology theorists.
Some molecules, such as amino acids are chiral, they occur randomly in nature as two molecular mirror images or enantiomers (See 1). A famous example is thalidomide, which was used as a morning sickness drug. It is also chiral. One form was an effective drug. The other was a poison. This explained why some babies were deformed.
The amino acid enantiomers are called levo (L) and dextro(D).
Interesting to creationists, proteins in all living things are built of L-amino acids exclusively.
Homochirality happens to be an obstacle to the prebiotic soup idea. All experiments to work around the “problem” have failed. For example, Eberhard Breitmaier of the University of Bonn and his team found that a magnetic field could force chemical reactions to favor L-amino acids (Science, 13 May 1994). No one could duplicate the experiment. Thanks to the pharmaceutical interest in enantiomers, like the infamous thalidomide, scientists went to Breitmaier's lab to see the experiment done again. It worked until Breitmaier tried without a teammate’s help. His colleague, Zadel, had been spiking the solution with large amounts of single-enantiomer additive (Science, July 1, 1994).
Ever since Eugene Dubois' 1891 Java-man hoax (3) and many others, it has been clear Evolution has its zealots similar to religious fanatics. Unfortunately, hoaxes popularized the theory. The Theory of Evolution has had its dark age of social Darwinism in Hitler’s day.
It seems Pasteur’s fight with spontaneous generation continues at the molecular level. His law states that life only comes from life.
A prominent biologist, Dean Kenyon of San Francisco State University, was one of the world's foremost authorities on biochemical evolution. He wrote Biochemical Predestination, which became a established university textbook. After biologists learned more, especially in genetics, he was among many to admit that the systems they discovered were irreducibly complex, not amenable to evolution. He explains this well with computer-generated images in a recent DVD called Unlocking the Mystery of Life and in his book Of Pandas and People. Life requires information, an encoding medium, molecular machines to handle the medium, communication mechanisms between molecular machines, infrastructure to position the molecular machines. We have networks of factories of factories working in each cell.
I question weak fossil evidence and hear of upside down geological layers in China (See 5 and 6). I see DVDs about diminishing vestigial organ list, and no proof that mutations can add useful information to the genetic code (4 and 5)
I am a computer scientist. I know that the code I’m modifying comes from a somewhat intelligent programmer. Until someone proves otherwise, great engineers made my computer and Charles Babbage made the first one in a pre-electronic mechanical soup.
* * *
1. Chirality (chemistry) - Wikipedia
2. Missing Link | Answers in Genesis
Missing Link | Answers in Genesis
3 Eugene Dubois admitted before he died in 1940 that his 1891 Java man was not a missing link. He said the human-like femur was found 46 feet farther that the skull cap which was that of a large gibbon.
4. Famous example of sightless cave fish: In a dark cave, the seeing cave-fish had no advantage over the blind. Their sensitive eyes are prone to scraping or attack and subsequent infection. Loss of eyesight shows a loss of genetic information through mutation. Natural selection weeded out the fish with eyesight. This is not an example of macro-evolution which is an addition of meaningful genetic information ( the addition of a member for example).
5. See Icons of Evolution DVD (amazon.com).
6. The 1980 Mount St. Helens eruption showed that 400 feet of sedimentation layers formed within days. (http://www.cnt.ru/users/chas/sthelens.htm).

This message is a reply to:
 Message 88 by Percy, posted 01-24-2003 12:26 PM Percy has not replied

Replies to this message:
 Message 90 by Chiroptera, posted 06-29-2005 2:02 PM sprout has not replied
 Message 91 by Admin, posted 06-29-2005 2:03 PM sprout has not replied

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