Tag Archive: gene duplication

Pheromone-induced odour learning

social interaction and brain

Mammary pheromone-induced odour learning influences sucking behaviour and milk intake in the newborn rabbit Excerpt: “…several results showed that pups could learn different odorants during successive days of conditioning, and that the more recently acquired cue was the most influential…
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Epigenetic pharmacology and RNA-mediated transciptional landscapes

terrarium eco system

Last year, Vosshall’s group eliminated ideas about the involvement of beneficial mutations in the nutrient-dependent cell type differentiation of mosquitoes. orco mutant mosquitoes lose strong preference for humans and are not repelled by volatile DEET. This year her group showed…
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Evolution of sex differences in cell types: more pseudoscientific nonsense

Demography can favour female-advantageous alleles Excerpt: “Models with coevolution of local adaptation and dispersal very rarely include sexual reproduction [20,21], even though local variation in sex ratio have been identified as increasing extinction risks [22–24] and can be a significant…
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Molecular time travel: a misrepresentation of amino acid substitutions

Genetic code

Evolution depends on rare chance events, ‘molecular time travel’ experiments show Excerpt: Thornton and Harms then created millions of copies of this genetic template, using a method that introduced random mutations into every new copy, thus mimicking the variation that…
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From odors to autism spectrum disorder

Mosaic Epigenetic Dysregulation of Ectodermal Cells in Autism Spectrum Disorder clearly links the de novo creation of olfactory receptor gene OR2L13, from decreased nutrient-dependent DNA methylation to sensory processing in ASD’s. A series of published works I posted yesterday in Ecological variation…
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Nutrition, pheromones and cancer: Relay for life (2014)

IMG_2125

With other motorcycle enthusiasts from Fannin Regional Hospital and from Riverstone Medical Campus, I helped to organize a “Rumble for Relay” charity motorcycle ride in 2007.  Each year since 2008, Pheromones.com has been a ride sponsor of the annual ride…
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Creation of genes

Genetic code

Drosophila’s New Genes An analysis of the transcriptomes of several fruit fly strains reveals dozens of possible de novo genes in each. By Jef Akst | January 23, 2014 Excerpt 1: “There has been a long tradition in biology to think…
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Creation of genes: The holy grail of evolutionary biology

terrarium eco system

Introduction: “Deciphering the genetic mechanisms that operated during the past 650 Myr of animal evolution to create the seemingly infinite variety of animals that populate our planet has been one of the holy grails in biology.” The question arises: “How…
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