Archive for the tag 'human evolution'

Oct 16 2009

SNPwatch: Two Large Studies Identify More Variants Associated with Blood-Related Traits

Published by Shwu under SNPwatch

Previously in The Spittoon, we discussed two papers that identified genetic variants associated with hemoglobin levels in circulating blood.
But blood consists of much more than hemoglobin, and it is responsible for much more than just transporting oxygen. This week Nature Genetics published the results of two of the largest blood studies to date, which together [...]

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Apr 15 2009

There’s More to Neanderthals than Meets the Eye

Published by AnneH under news

Over the past decade, there has been no shortage of studies focused on the relationship between Neanderthals and our own species, Homo sapiens. Researchers have dug deep into the fossil record and our genomes to uncover how closely related we are to the Neanderthals, whether we interacted with them, and even whether our two species [...]

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Mar 06 2009

Don’t Call it a Comeback: The Life, Death, and Rebirth of the Human IRGM Gene

Published by AnneH under big questions, news

Throughout the course of human evolution, there have been plenty of firsts. Small changes in our genetic code have laid the groundwork for our bipedal gait, our large brains, and our ability to speak complex languages.
There are countless genes throughout the human genome that distinguish us from our evolutionary relatives; now scientists have [...]

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Jul 22 2008

The Ultimate Trade-off: Genes, Environment, and Why We Crave Twinkies

Published by AnneH under big questions, genetics 101

Last week in the Spittoon we reported on a new study that identified an interesting genetic trade-off — a genetic variant known that has one effect on a person’s vulnerability to malaria, and the opposite on susceptibility to HIV infection. The “Duffy negative” version of the gene, which is common among Africans and African Americans, [...]

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