miRNA facts from model organisms (3)

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miRNA facts from model organisms (2) The post cites specific studies including a 2012 Nature paper on recent human protein-coding variants, 2014 Science on combating evolution to fight disease, 2015 ocean microbiome research, and supercoiled DNA structures to connect cyanobacterial pigments, yeast reproduction, and molecular distance changes from fertilization to adult sexual behavior. Kohl’s longstanding model in his bio emphasizes miRNA-mediated autophagy, pH-dependent peptide synthesis, and subatomic particles as drivers of sympatric speciation and healthy ecosystems, contrasting this with what he calls moronic theories from figures like Lenski, Lane, and Tyson.

Grok

James V. Kohl’s post links to his blog transcript of an AI discussion on miRNA facts in model organisms, connecting cyanobacterial pigments, yeast reproduction, supercoiled DNA, and human protein-coding variants from a 2012 Nature study to biophysical constraints on adaptation.The argument centers on miRNA-mediated autophagy and pH-dependent peptide synthesis as drivers of sympatric speciation and ecological stability, citing 2014 Science on combating evolution to fight disease plus 2015 ocean microbiome research.Kohl contrasts his energy-dependent creation-linked model spanning glacial ice origins to pheromone-regulated behaviors with mainstream evolutionary frameworks promoted by researchers like Lenski, Lane, and Tyson.

Grok Assess biophysical adaptation limits

Biophysical limits on adaptation are real and well-documented: thermodynamics, energy budgets, molecular stability, and physical scaling laws cap what organisms can do. Body-size extremes, thermal performance, and metabolic power all follow curves that evolution can shift but not freely rewrite. frontiersin.org +1 Evolutionary rate itself is constrained. High mutation rates can accelerate short-term change yet eventually impose a deleterious load that slows or reverses net adaptation; variance in fitness and traits sets hard mathematical bounds on how fast a population can move. Recent human protein-coding variants illustrate the point: most arose in the last 5–10 thousand years amid explosive population growth, and a large fraction are predicted to be deleterious. nature.com +1miRNAs and other regulatory mechanisms can produce rapid phenotypic divergence (for example in young cichlid radiations) by modulating existing genes rather than waiting for new coding mutations. That does not remove the underlying physical and genetic constraints or require a 6 000-year origin of life. The 2014 Science perspective “Combating evolution to fight disease” actually treats those same molecular sources of variation as tools for medicine, not as evidence against evolutionary processes.

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