Tag Archive: olfactory receptor genes

An epigenetic trap (the prequel)

terrarium eco system

See also: An epigenetic trap (the sequel) Excerpt: “Support for the link from one epigenetic trap to cell type differentiation was included in the molecular epigenetics section of our 1996 review, which detailed how RNA-mediated chromatin remodeling occurs.” My comment:…
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Imagining that data historically supports evolutionary theory

human-evolution

1) Arguments in the evo-devo debate: say it with flowers! Abstract excerpt: A key question in evolutionary developmental biology is how DNA sequence changes have directed the evolution of morphological diversity. The widely accepted view was that morphological changes resulted…
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Mute points: most are afraid to mention them

Physics

In discussion of anthropic theory and the fact that fundamental physical constraints underlie our life-enabling universe, Andrew Jones wrote: “Pathogenicity of E. coli 0157 has nothing to do with its temperature stability.” Like others who are biologically uninformed, Jones defies…
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Conserved molecular mechanisms

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In RNA-mediated events: chromosomal rearrangements and genomic rearrangements, I wrote: John Hewitt is the only science journalist I know who may have the knowledge required to link bio-physically constrained epigenetically-effected cell type differentiation via Luca Turin’s Molecular Vibration-Sensing Component in…
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Eliminating correlations from evolutionary ecology

terrarium eco system

De novo creation of olfactory receptor genes clearly links food odors via amino acid substitutions to cell type differentiation in mosquitoes, and in nematodes, flies, honeybees, etc. It would be surprising if cause and effect did not extend to vertebrates…
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RNA-mediated species specificity

human-evolution

Species-Specific Scientists uncover striking differences between mouse and human gene expression across a variety of tissues. By Jyoti Madhusoodanan | November 17, 2014 Excerpt: “…results published today (November 17) in PNAS reveal widespread differences between human and mouse gene expression,…
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Ecological adaptations reported as evolution in insects and mammals

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Evolution of mosquito preference for humans linked to an odorant receptor Excerpt: “Our results also provide insight into the molecular basis of behavioural evolution.” See their diagram in Extended Data Figure 3: Amino acid differences of major Or4 protein alleles….
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Quantum consciousness: seeing the light

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Quantum and Consciousness Often Mean Nonsense “Lots of things are mysterious. That doesn’t mean they’re connected.” By Matthew R. Francis MAY 29, 2014  My comment: Single-residue insertion switches the quaternary structure and exciton states of cryptophyte light-harvesting proteins was published on June 16, 2014. It links light…
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Genes and Race: Human History?

terrarium eco system

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…
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Creation of genes enables ecological adaptations

Genetic code

NY Times Science The Continuing Evolution of Genes By CARL ZIMMER APRIL 28, 2014 Excerpt: ” As genes duplicate over millions of years, they can grow into so-called gene families, each containing hundreds of similar genes. One family, for example, is essential for…
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