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That doesn't tell me much about the evidence. In one of the areas of the human genome that would have had to change the most, Human Accelerated Region (HAR), we find a gene that has changed the least over just under 400 million years HAR1F. Just after the Cambrian is would have had to emerge de novo, fully formed, fully functional and permanently fixed along broad taxonomic categories. In all the time since it would allow only two substitutions, then, while the DNA around it is being completely overhauled it allows 18 substitutions in a regulatory gene only 118 nucleotides long. The vital function of this gene cannot be overstated:Speaking of informed decisions regarding DNA and evolution:
Karl Giberson: One of the things I appreciate a lot about Darrel Falk, who I think is a courageous voice in this conversation, is that he will come out and say that common ancestry is simply a fact. And that if you’re not willing to concede that the genetic evidence points to common ancestry than you’re essentially denying the field of biology the possibility of having facts at all. That’s the strong language that he uses.
Would you say that common ancestry and evolution in general is at that level? How compelling is the evidence at this point?
Francis Collins: The evidence is overwhelming. And it is becoming more and more robust down to the details almost by the day, especially because we have this ability now to use the study of DNA as a digital record of the way Darwin’s theory has played out over the course of long periods of time.
Darwin could hardly have imagined that there would turn out to be such strong proof of his theory because he didn’t know about DNA - but we have that information. I would say we are as solid in claiming the truth of evolution as we are in claiming the truth of the germ theory. It is so profoundly well-documented in multiple different perspectives, all of which give you a consistent view with enormous explanatory power that make it the central core of biology. Trying to do biology without evolution would be like trying to do physics without mathematics
Francis Collins and Karl Giberson Talk about Evolution and the Church, Part 2
The most dramatic of these ‘human accelerated regions’, HAR1, is part of a novel RNA gene (HAR1F) that is expressed specifically in Cajal– Retzius neurons in the developing human neocortex from 7 to 19 gestational weeks, a crucial period for cortical neuron specification and migration. HAR1F is co-expressed with reelin, a product of Cajal–Retzius neurons that is of fundamental importance in specifying the six-layer structure of the human cortex. (An RNA gene expressed during cortical development evolved rapidly in humans, Nature 16 August 2006)
This all has to occur after the chimpanzee human split, while our ancestors were contemporaries in equatorial Africa, with none of the selective pressures effecting our ancestral cousins. This is in addition to no less then 60 de novo (brand new) brain related genes with no known molecular mechanism to produce them. Selection can explain the survival of the fittest but the arrival of the fittest requires a cause:
The de novo origin of a new protein-coding gene from non-coding DNA is considered to be a very rare occurrence in genomes. Here we identify 60 new protein-coding genes that originated de novo on the human lineage since divergence from the chimpanzee. The functionality of these genes is supported by both transcriptional and proteomic evidence. RNA– seq data indicate that these genes have their highest expression levels in the cerebral cortex and testes, which might suggest that these genes contribute to phenotypic traits that are unique to humans, such as improved cognitive ability. Our results are inconsistent with the traditional view that the de novo origin of new genes is very rare, thus there should be greater appreciation of the importance of the de novo origination of genes…(De Novo Origin of Human Protein-Coding Genes PLoS 2011)
Whatever you think happened one thing is for sure, random mutations are the worst explanation possible. They cannot produce de novo genes and invariably disrupt functional genes. You can forget about gradual accumulation of, 'slow and gradual accumulation of numerous, slight, yet profitable, variations' (Darwin). That would require virtually no cost and extreme benefit with the molecular cause fabricated from vain imagination and suspended by pure faith.
That's what I mean by evidence, it's a little hard to navigate but it's devastating to the universal common ancestor model.
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