(November 24, 2013 at 8:11 pm)snowtracks Wrote: so, i put this out there - "one problem for undirected spontaneous interactions from a prebiotic compound is that the dna complimentary 2 strands that form the double helix construction cannot bind with each other unless all the building blocks (nucleotides) are of the same handedness (here, all 19 are left handed). nature and lab experiments have shown nonbiological processes produce molecules in essentially 50% (even distribution of right, left) which corresponds to randomness, whereas encoded information (building instructions) directs handedness from the get-go." - knowing that the evolution microbiologists have given up explaining it; but still, i thought someone on this board would tell how it's done by unidirectional processes. again, two need to be explained: double helix design and construction, and the 19 nucleotides all being one-handed (whereas experimentally it comes up randomly around 50%.).
Really now, This sounds so much like the "you can't say invisible pixies don't push the car forward if you as a mechanic can't explain why the CD player works" argument.
If the conditions for abiogenesis weren't a rare thing, we'd have new life popping up everywhere. Your argument that conditions would be rare to cause life, does not go against observation, nor our current theories. It doesn't say anything.
http://www.talkorigins.org/indexcc/CB/CB040.html
Amino acids found in meteorites from space, which must have formed abiotically, also show significantly more of the left-handed variety, perhaps from circularly polarized UV light in the early solar system (Engel and Macko 1997; Cronin and Pizzarello 1999). The weak nuclear force, responsible for beta decay, produces only electrons with left-handed spin, and chemicals exposed to these electrons are far more likely to form left-handed crystals (Service 1999). Such mechanisms might also have been responsible for the prevalence of left-handed amino acids on earth.
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