Free-swimming cholera bacteria are much less infectious than bacteria in biofilms, aggregates of bacterial cells embedded in a sticky matrix that form on surfaces. This accounts for the surprising effectiveness of filtering ...
Cell & Microbiology
Apr 20, 2020
0
86
Mistakes are rarely rewarded. Intuitively, one would imagine that a shoddy typist at an office who keeps generating typos would either quickly lose their job, or at least be overlooked for promotion. The idea that this person ...
Evolution
Mar 26, 2020
0
171
In 2007, Finnish Airedale terrier breeders sent puppies that had died only a few days after being born for pathological examinations to the Finnish Food Safety Authority (Evira). Some litters had lost several puppies. A research ...
Biotechnology
Mar 25, 2020
0
7
A canine study carried out at the University of Helsinki has described a gene variant in the regulatory region of the retina resulting in the abnormal function of retinal genes and, eventually, in the loss of vision in dogs. ...
Veterinary medicine
Mar 10, 2020
0
30
Scientists at Uppsala University have proposed an addition to the theory of evolution that can explain how and why genes move on chromosomes. The hypothesis, called the SNAP Hypothesis, is presented in the scientific journal ...
Evolution
Mar 4, 2020
2
177
The herbicide Roundup is the most widely used agricultural chemical in history. But over the past two decades, a growing number of weed species have evolved resistance to Roundup's active ingredient, glyphosate, reducing ...
Plants & Animals
Feb 3, 2020
6
218
When controlling mosquitoes that spread malaria, gene drives, which force genetic changes to proliferate in a population, are faster and more efficient than simply releasing mosquitoes that are immune to the parasite, according ...
Biotechnology
Dec 19, 2019
1
7
Simian immunodeficiency virus, the monkey- and ape-infecting virus that HIV originated from, may have influenced the genetics of chimpanzees, finds a new UCL-led study.
Evolution
Dec 13, 2019
0
130
The genome is the master plan for all body parts, from toe nails to eyebrows. But it's not just the blueprint that determines what's built. All of the cellular players that draw instructions from the blueprint add their own ...
Biotechnology
Nov 14, 2019
0
209
Mice living at high altitudes in the American West carry a genetic variant that increases their heart rate, helping them cope with the low oxygen levels that occur at high elevations. Rena Schweizer of the University of Montana ...
Plants & Animals
Nov 7, 2019
0
100
