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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?


To: Alastair McIntosh who wrote (19111)1/3/2012 11:23:18 AM
From: Brumar89  Read Replies (3) | Respond to of 69300
 
I'm sorry, saying we don't know the "exact" mechanism for how chemistry and physics formed a code means we don't know.

Let's look at the first one of those:

Recent findings in the modern RNA world
Marc Meli, Benjamin Albert-Fournier, Marie-Christine Maurel

Abstract

It is assumed that modern life forms arose from a molecular ancestor in which RNA molecules both stored genetic information and catalyzed biochemical reactions. In modern cells, these functions are carried out, respectively, by DNA and proteins, but diverse cellular RNAs are also involved in key cellular functions. In this paper, we review the cellular RNAs that are ubiquitous and/or that perform essential biological functions, and we discuss the (supposed) evolutionary relationships of such RNAs with a (hypothesized) prebiotic RNA world. This unexpected biological diversity of cellular RNAs and the crucial functions they perform in cellular metabolism demonstrate the complexity of an RNA-driven metabolism in an ancient RNA world (whoa, RNA's role in metabolism in modern living things doesn't demonstrate ANYTHING about a hypothetical ancient RNA world - if there ever was an RNA world, it should still exist in addition to and alongside of modern living things) and in modern life. Cellular RNAs are involved in translation (tRNA and rRNA) but also in ribosome maturation (snoRNA) and more generally in RNA processing (snRNA and snoRNA), replication ( telomerase RNA), editing, protein translocation (SRP RNA), cellular transport (vRNA) and translation quality control (tmRNA). In addition, the function of many other cellular RNAs has not yet been determined. Future investigations of RNA function will allow us to better understand not only early evolutionary biological processes but also the central metabolism of modern cells.

IOW, that's just a bunch of bullshitting.



To: Alastair McIntosh who wrote (19111)1/3/2012 11:46:47 AM
From: 2MAR$  Read Replies (3) | Respond to of 69300
 
The probability of producing self replicating peptide chains goes up exponentially in highly excited prebiotic churning oceans rich in amino acids , with billions of different chemical joinings happening at astonishing rates . These first stages of Abiogenesis in the early laboratory of Earth , claimed to be impossible by the creationists could have happened under those conditions in the blink of an eye , given the vastness of the oceans and tidal action of the moon .

Intuition tells us that the lunar tidal component of literally "stirring the soup" is a vital mechanism to speed up the process but could also assume those same early peptide chains would form in any similar early stage planet that undergoes cooling and night/day cycles , with the all basic elements present in the habitable green zone . 100-200bil stars out there and the same amount of planets the latest best guess is there's 50mil planets alone just in the Milky Way Galaxy that fall into that habitable orbit & temperate zone .

The implication is that formation of life though rare statistically because of these necessary criteria being met , happens with certain regularity throughout the Universe . The Elements found here are the same elementals found in any other Galaxy and the same laws of physics apply universally .

Last couple of paragraphs make this clear to more than a reasonable degree