New technique fills gaps in fossil record
University of Pennsylvania evolutionary biologists have resolved a long-standing paleontological problem by reconciling the fossil record of species diversity with modern DNA samples.
Human-Neanderthal coupling was rare: study
Scientists have shown that modern humans have some traces of genes from Neanderthals, but a study out Monday suggests that any breeding between the two was most likely a rare event.
New DNA analysis thousand times more sensitive
(PhysOrg.com) -- An international team of researchers has developed a new DNA technology which makes it possible to perform reliable analyses on DNA quantities that are a thousand times smaller than was previously the case. ...
Scientists find gene linked to alcohol consumption
Scientists have identified a gene that appears to play a role in regulating how much alcohol people drink, in a study of over 47,000 people published today in Proceedings of the National Academy of Sciences.
To better detect heart transplant rejections, scientists test for traces of donor's genome
Heart transplant recipients and their physicians are likely more concerned with the function of the donated organ than with the donor's DNA sequences that tag along in the new, healthy tissue. However, researchers at the ...
Researchers develop safer way to make induced pluripotent stem cells
Researchers at Johns Hopkins have found a better way to create induced pluripotent stem (iPS) cells -- adult cells reprogrammed with the properties of embryonic stem cells -- from a small blood sample. This new method, described ...
Contagious cancer thrives in dogs by adopting host's genes
An curious contagious cancer, found in dogs, wolves and coyotes, can repair its own genetic mutations by adopting genes from its host animal, according to a new study in the journal Science.
Sensitive testosterone detector linked to less aggression
Questionnaire results and DNA samples volunteered by a group of University of Alberta students has broken new ground in the study of aggression. U of A Psychology researcher Peter Hurd was looking at the link ...
Blast from the past: Jack pine genetics support a coastal glacial refugium
Can a road-trip across eastern North America, ancient ice sheets, and DNA samples unlock the ancestral history of jack pine trees? Julie Godbout and colleagues from the Université Laval, Quebec, Canada, certainly hoped ...
Genetic differences in sense of smell identified through asparagus urine odor
Scientists at the Monell Center have used a well-known example of individual differences to identify a genetic contribution to the sense of smell.
City living helped humans evolve immunity to TB
New research has found that a genetic variant which reduces the chance of contracting diseases such as tuberculosis and leprosy is more prevalent in populations with long histories of urban living.
Elusive elephant-shrew found in African forest
Conservationists researching the biodiversity of the Boni-Dodori forest on the coast of north-eastern Kenya were thrilled to capture pictures of the bizarre mammal.
New Parkinson's gene is linked to immune system
A hunt throughout the human genome for variants associated with common, late-onset Parkinson's disease has revealed a new genetic link that implicates the immune system and offers new targets for drug development.
The taste of quinine: It's in your bitter genes
Some people find quinine to be bitter while others can drink it like water. Now, scientists from the Monell Center and collaborators report that individual differences in how people experience quinine's bitterness are related ...