biodiversity

RNA-directed DNA methylation and RNA-mediated events

Many colleagues and most of my antagonists seem to be unwilling to accept the fact that RNA-directed DNA methylation links the epigenetic landscape to the physical landscape of DNA in the organized genomes of species from microbes to man. Lack of acceptance appears to be due to the fact that they think mutations and natural selection link evolutionary events to biodiversity. There is no model for that, but they refuse to accept the fact that RNA-mediated events link ecological variation…

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Mathematical model: microRNA and epigenetic regulation

Hypothesis & Theory ARTICLE Front. Genet. | doi: 10.3389/fgene.2014.00345 Interplay of microRNA and epigenetic regulation in the human regulatory network. Excerpt: “…a detailed model of the epigenetic interaction and its relations with the cellular environment would be required, and this is still an open issue (24).” My comment: Nutrient-dependent/pheromone-controlled adaptive evolution: a model. Conclusion:  “Minimally, this model can be compared to any other factual representations of epigenesis and epistasis for determination of the best scientific ‘fit’.” The model starts with…

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Quantum physics meets Evolutionary Psychology News

Capturing the motion of a single molecule in real time as it oscillates from one quantum state to another September 18, 2014 Excerpt: “It also moves researchers a step closer to viewing the molecular world in action — being able to see the making and breaking of bonds, which control biological processes such as enzymatic reactions and cellular dynamics.” My comment: The making and breaking of bonds controls all biological processes. Luca Turin tried to do move researchers a step closer…

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RNA-mediated species diversification from microbes to primates

Mycobacteriophage-drived diversification of Mycobacterium abscessus Biology Direct (15 September 2014) OPEN ACCESS Excerpt (with my emphasis): “Widespread occurrence of phage sequences in almost all studied M. abscessus complex isolates suggests that the rate of prophage invasion is faster than the rate of mutation, implying rapid evolution of M. abscessus.” My comment: The faster rate of prophase invasion suggests ecological adaptations occur more rapidly than evolution. That may be why no experimental evidence of biologically-based cause and effect suggests that evolution…

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Insect homology and diversity attributed to mutations

Ancient homology underlies adaptive mimetic diversity across butterflies Excerpt: “Surprisingly, our results suggest that modulation of this conserved developmental gene has occurred in tandem between these two deeply divergent butterfly lineages, implying an unexpected and remarkable level of predictability in the evolutionary process.” Reported as: A single evolutionary road may lead to Rome Excerpt: “Copying errors and genomic viruses directly lead to the wing patterns of these beautiful butterflies,” Gallant said. “It’s these accidents that allow the evolutionary process to…

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Genes and Race: Human History?

Roundup of Book Reviews of Nicholas Wade’s A Troublesome Inheritance My comment: Many reviewers of Wade’s book on genes and race appear to think he has accurately represented issues of differences in cell types that evolutionary theorists associate with mutations, natural selection, and the evolution of human biodiversity. This may be cause for concern among those who are interested in accurate representations of biologically-based cause and effect. In this century, it has become clear that ecological variation results in biodiversity, which…

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