Gene Expression

Archives for October, 2007

My political orientation

Every now and then I take political quizzes to see where I am. Below the fold are my results for three surveys….

Alu and chimpanzees & humans

Alu Recombination-Mediated Structural Deletions in the Chimpanzee Genome: Here, by scanning the chimpanzee genome for such deletions, we determined the role of the Alu recombination-mediated deletion process in creating structural differences between the chimpanzee and human genomes. Using a combination of computational and experimental techniques, we identified 663 deletions, involving the removal of ∼771 kb…

FOXP2, language & Neandertals

The Derived FOXP2 Variant of Modern Humans Was Shared with Neandertals: …Here, we find that our closest extinct relatives, the Neandertals, share with modern humans two evolutionary changes in FOXP2, a gene that has been implicated in the development of speech and language. We furthermore find that in Neandertals, these changes lie on the common modern…

Human evolutionary genetics in Nature

In case you didn’t notice, the latest Nature is heavy on human evolutionary genetics. Go here and control-f “Human genetics: Genes tell our evolutionary tale.”

Earliest modern humans?

Researchers find earliest evidence for modern human behavior in South Africa: “Our findings show that at 164,000 years ago in coastal South Africa humans expanded their diet to include shellfish and other marine resources, perhaps as a response to harsh environmental conditions,” notes Marean, a professor in ASU’s School of Human Evolution and Social Change.…

The genetic map maker. Read the whole thing, but this is interesting: How did you feel about being accused of racism? Well, many mistakes are made and that was a very curious one. I’d argued for decades that the concept of ‘race’ defined by external characteristics — such as skin colour, size variations or facial…

Donors Choose Update

OK GNXP readers…Donors Choose update. Been quiet about this. First, the good news. ScienceBlogs has raised A LOT of money. And Seed is throwing in matching funds (and possible prizes). The “bad” news is that my challenge is really not going too well Page down on the leader-board, will you? So I’ve added many new…

Flu & schizophrenia

Maternal Immune Activation Alters Fetal Brain Development through Interleukin-6: Schizophrenia and autism are thought to result from the interaction between a susceptibility genotype and environmental risk factors. The offspring of women who experience infection while pregnant have an increased risk for these disorders. Maternal immune activation (MIA) in pregnant rodents produces offspring with abnormalities in…

Antagonistic pleiotropic effects reduce the potential adaptive value of the FRIGIDA locus: ….Here we investigate the importance of pleiotropy and epistasis in determining the adaptive value of a candidate gene using the gene FRI (FRIGIDA), which is thought to be the major gene controlling flowering time variation in Arabidopsis thaliana. The effect of FRI on…

Steven Pinker is wrong on religion

Sort of. I assume that part of this is delivery and the nature of a short interview format. But, I think it is important to highlight a point of mild disagreement between Steven Pinker and Rebecca Goldstein in their Salon interview: PINKER: Exactly. I would be opposed to a requirement on astrology and astronomy, or…