Tag Archive: gene

RNA-mediated epigenetic modification via DNA-methylation

human-evolution

I have repeatedly used the phrase “RNA-directed DNA methylation and RNA-mediated amino acid substitutions” in the context of links from the epigenetic landscape to the physical landscape of DNA in the organized genomes of species from microbes to man. See…
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Extensive molecular evidence vs ridiculous theories

terrarium eco system

Mosquito Genomes Galore Whole-genome sequences of 16 different mosquito species reveal rapid evolution and could inform malaria research. By Ruth Williams | November 27, 2014 Excerpt: “…mosquitoes are rapidly evolving, exhibiting high degrees of gene gains, losses, shuffling, and even…
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Eliminating evolutionary theory

terrarium eco system

Does evolutionary theory need a rethink? Excerpt 1) “…the theory neglects key processes, say Kevin Laland and colleagues.” My comment: “Olfaction and odor receptors provide a clear evolutionary trail that can be followed from unicellular organisms to insects to humans…
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Pattern recognition and conserved receptors (TAARs)

human-evolution

Olfactory Receptor Patterning in a Higher Primate Excerpt: We found that TAARs are also expressed in the macaque OE, suggesting that these receptors may also function as chemosensory receptors in the human nose. My comment: The article links the senior…
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Epigenetic effects on chromatin and regulatation of gene expression (in Archaea?)

the bottom-up epigenetic effects of nutrient chemicals on speciation that are concurrently controlled by the top-down epigenetic effects of pheromones on reproduction challenges those who might rather attempt to-explain away the conserved molecular biology of adaptive evolution via random mutations theory