natural selection

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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Darwinian theories vs Darwin's facts

“Darwin’s Theories“, submitted by Celia Secades of the Elesapiens website was the runner-up in the Third Annual NESCent Evolution Video Contest. (unfortunately, the video has been removed — perhaps for good reasons. For example: My comment: No experimental evidence supports the representations of mutation-initiated natural selection in the video. For comparison, tenOever on microRNA and Vaccines  addresses what is currently known about glucose-dependent RNA-mediated amino acid substitutions and self vs non-self identification in viruses to living species with varying degrees of nutrient-dependent pheromone-controlled ecologically-adapted organismal complexity.…

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Targeting a cancer gene

‘Undruggable’ mutation meets its match: Six-year effort yields first drug to target important cancer gene See also: Drug discovery: Pocket of opportunity[subscription required] Excerpt: “.,.the non-mutated protein is the beating heart of cell signalling, but mutated versions are the villainous masterminds of malignancies.” and see K-Ras(G12C) inhibitors allosterically control GTP affinity and effector interactions [subscription required] Excerpt: “…initial evaluation of our compounds in lung cancer cell lines suggests allele-specific impairment of K-Ras function.” My comment: 1) They ignored any aspect…

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Social experiences epigenetically effect gene networks

Networks of Genes Respond to Social Experiences October 13, 2013, from Searching for the Mind with Jon Lieff, M.D. Excerpt 1: “The gene networks of social experience are consistent through many animals.” My comment: Not just many animals; the gene networks of social experiences must be consistent in all animals that adaptively evolved. You cannot get from microbes to man with any consistent model of cause and effect until you realize that the molecular mechanisms that enable cause and effect…

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Evolution: innovations may have non-adaptive origins (sans mutations)

Q & A: Evolution Makes Do By Chris Palmer Evolutionary biologist Andreas Wagner argues that many evolutionary innovations may have non-adaptive origins. Excerpt: “If exaptations are pervasive, then natural selection—which few doubt is critical for the preservation and spreading of traits—may not be that important for the origin of innovations in life’s history.” See also: Rapid detection of positive selection in genes and genomes through variation clusters Excerpt: “They occur in well-defined domains of a protein’s tertiary structure and show…

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