Presenting the complexity of getting to DNA directly from a chemical soup is barking up the wrong tree as life probably evolved after it had developed auto catalyzing peptides through a phase of RNA based life. The origins of life most likely used some -- as yet unkown -- simpler information repository that could be assembled through non-enzymatic means. Chemically simpler -- and easier to assemble -- RNA like polymers exist that have been suggested as a candidate and some of these polymer chains have been shown to be able to (in laboratory conditions) act as a template for the formation of complimentary transcribed strands of RNA. In the anoxic conditions of early earth iron may have played a role in this first genesis. You present the picture -- after billions of years of evolution and say how could life have gotten here without a designer -- as if it got here from nothing in a single leap -- but you ignore that over billions of years an astronomically huge number of variations on all manner of themes can be tried out, and that over time incremental change can set the stage for radical leaps (for example moving from RNA based life to DNA based life) The move to the more stable and higher fidelity DNA double helix no doubt took a lot of time (the precursor enzymes etc. needed to be available first) and may have evolved more than once as well. There is evidence from comparative genomics, structural biology that the specific enzymes involved in the synthesis of DNA precursors, retro-transcription of RNA templates and replication of single and double-stranded DNA molecules evolved independently and on several occasions. DNA is chemically quite similar to RNA and in modern cellular biology DNA building blocks are in fact assembled from RNA precursors -- which itself suggests that DNA evolved from RNA. Their is a fair amount of enzymatic and other evidence that suggest life evolved from RNA based genetic encoding to the DNA double helix (RNA is, in fact, vital and still very central to cellular chemistry of life -- as an intermediary information messenger -- mRNA -- (and ribosomal actor perhaps) -- transcribed from DNA gene regions onto complimentary strands of RNA transcript using the enzyme RNA polymerase) There is evidence for RNA having filled the role that DNA now plays -- at the enzymatic and biochemical level -- for example in how mRNA catalyzes the building of peptides by ribosomes. We do not know for sure how life began on our planet (or even if it began here or was transported here -- the pangenesis hypothesis) -- whatever and however it was a very long time ago. However there is evidence buried in the DNA, the cellular organelles (ribosomes, mitochondria etc.) & biochemical processes and artifacts of present day living things that provide intriguing hints of earlier intermediary stages that life may have evolved through. May I suggest reading these extracts: http://www.ncbi.nlm.nih.gov/books/NBK6360/ http://www.ncbi.nlm.nih.gov/books/NBK26876/
It is a fascinating story that is still being unraveled by curious minds and denied by minds who need a neatly packaged explanation and who abdicate the attempt to discover genesis by invoking a designer. I am aware that -- true believers in a created universe, will not be convinced, for there is nothing that can be said or done that can reach into the mind of a believer safely sedimented by their dogma. ________________________________ From: Roger Clough <[email protected]> To: "- [email protected]" <[email protected]>; everything-list <[email protected]>; 4dworldx <[email protected]>; "[email protected]" <[email protected]>; "[email protected]" <[email protected]>; plamen simeonov <[email protected]>; theoretical_physics <[email protected]> Sent: Monday, August 5, 2013 5:19 AM Subject: Serious proof of why the theory of evolution is wrong Serious proof of why the theory of evolution is wrong. The irreducible complexity of DNA. See attached. Dr. Roger B Clough NIST (ret.) [1/1/2000] See my Leibniz site at http://independent.academia.edu/RogerClough The listing of the attachments is as following: (1) The remarkable language of DNA.pdf (617.8 K) Dr. Roger B Clough NIST (ret.) [1/1/2000] See my Leibniz site at http://independent.academia.edu/RogerClough -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out. -- You received this message because you are subscribed to the Google Groups "Everything List" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/everything-list. For more options, visit https://groups.google.com/groups/opt_out.
