tiistai 22. lokakuuta 2013

Ann Gauger

Gauger reported on her work at the Wistar Retrospective Symposium held from June 3 through June 7, 2007 in Boston, Massachusetts. As reported by Daniel Brooks, "...she discussed “leaky growth,” in microbial colonies at high densities, leading to horizontal transfer of genetic information, and announced that under such conditions she had actually found a novel variant that seemed to lead to enhanced colony growth. Gunther Wagner said, “So, a beneficial mutation happened right in your lab?” at which point the moderator halted questioning."

http://en.wikipedia.org/wiki/Biologic_Institute


So creationists tend to prove themselves wrong ...

Some answers to her
http://www.talkorigins.org/faqs/comdesc/section1.html#fundamental_unity

All life has DNA, is that proof of design or common ancestry, you deside.


Prediction 1.1: The fundamental unity of life

"OH JEHOVA, quam ampla sunt opera Tua."
– Carolus Linnaeus
at the beginning of Systema Naturae, 1757
According to the theory of common descent, modern living organisms, with all their incredible differences, are the progeny of one single species in the distant past. In spite of the extensive variation of form and function among organisms, several fundamental criteria characterize all life. Some of the macroscopic properties that characterize all of life are (1) replication, (2) heritability (characteristics of descendents are correlated with those of ancestors), (3) catalysis, and (4) energy utilization (metabolism). At a very minimum, these four functions are required to generate a physical historical process that can be described by a phylogenetic tree.
If every living species descended from an original species that had these four obligate functions, then all living species today should necessarily have these functions (a somewhat trivial conclusion). Most importantly, however, all modern species should have inherited the structures that perform these functions. Thus, a basic prediction of the genealogical relatedness of all life, combined with the constraint of gradualism, is that organisms should be very similar in the particular mechanisms and structures that execute these four basic life processes.

Confirmation:

The common polymers of life

The structures that all known organisms use to perform these four basic processes are all quite similar, in spite of the odds. All known living things use polymers to perform these four basic functions. Organic chemists have synthesized hundreds of different polymers, yet the only ones used by life, irrespective of species, are polynucleotides, polypeptides, and polysaccharides. Regardless of the species, the DNA, RNA and proteins used in known living systems all have the same chirality, even though there are at least two chemically equivalent choices of chirality for each of these molecules. For example, RNA has four chiral centers in its ribose ring, which means that it has 16 possible stereoisomers—but only one of these stereoisomers is found in the RNA of known living organisms.

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