Tag Archive: sex differences

Understanding cell type differentiation

Genetic code

The Wisdom of the Fly Crowds by Ed Yong Excerpt: “This is a landmark study of collective behaviour,” says Iain Couzin… “Never before has it been possible to unweave the intricate coding of social behaviour during collective decision-making.” When it…
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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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The importance of olfactory receptors

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Smell Turns Up in Unexpected Places By ALEX STONEOCT. 13, 2014 Excerpt: “I’ve been arguing for the importance of these receptors for years,” said Dr. Hatt, who calls himself an ambassador of smell, and whose favorite aromas are basil, thyme…
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Evolutionary theorists and evolutionary theists live under rocks

terrarium eco system

CRISPR/Cas: Not Just for DNA Anymore Excerpt 1) “Unless you’ve been living under a rock the past two years, you’ve heard of CRISPR/Cas9, an RNA-guided nuclease that’s redefining synthetic biology and genome engineering.” Excerpt 2) “The authors propose several additional…
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RNA-mediated cell type differentiation and behavior

human-evolution

Neuroscience Meeting Planner Now Available The Preliminary Program and Neuroscience Meeting Planner for Neuroscience 2014 are available. At the 2012 Meeting I learned that the microRNA/messenger RNA balance had emerged during the past decade to be the most likely regulator…
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Behavior (2): All responses are RNA-mediated not genetically-determined

IMG_2125

Diana Maria Petrosanu also asked: “who was the author of the article that had stolen your ideas?“ I cannot recall claiming that anyone had stolen our ideas or my ideas. See: Behavior: The first response is RNA-mediated not genetically-determined. In…
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Pattern recognition from microbes to man

human-brain

  Commensal bacteria play a role in mating preference of Drosophila melanogaster Excerpt: “The major findings of this study are (i) diet-induced mating preference occurred in D. melanogaster after only one generation on different growth media and was maintained under…
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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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Late emerging epigenetic effects

neuronal-plasticity

The effects of perinatal testosterone exposure on the DNA methylome of the mouse brain are late-emerging Excerpt:  “…the emergence of sex differences in the brain may be a gradual process that is cemented over the organism’s life. Our data provide…
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ISHE: Two New Trustees

human-evolution

The election for two International Society for Human Ethology (ISHE) Trustee positions ended with a welcome to newly elected trustees: Jan Havlicek and Nancy Segal More on Nancy. See also this chapter on the Genetics of Olfactory Perception by​ Nancy L. Segal…
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