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Latest Experimental evolution Stories

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2011-03-23 07:25:00

Team effort between UH, Michigan State may lead to strategies to reduce antibiotic resistance In a study that literally analyzed competing bacteria fighting it out to the death, a University of Houston (UH) researcher and his colleagues identified evolutionary 'winners' and 'losers.' Continuing research to understand the basis of these fates may become a useful tool is designing roadblocks to antibiotic resistance. In collaboration with scientists at Michigan State University (MSU), UH...

2010-09-01 20:40:42

Finding suggests pharmaceutical drugs can be used to alter activity levels in humans Biologists at the University of California, Riverside have found that voluntary activity, such as daily exercise, is a highly heritable trait that can be passed down genetically to successive generations. Working on mice in the lab, they found that activity level can be enhanced with "selective breeding" "“ the process of breeding plants and animals for particular genetic traits. Their experiments...

2010-05-19 09:44:09

When the forces of evolution took over an experimental strain of bacteria, it derailed an experiment Duke and NC State researchers thought they were conducting, but led to something much more profound instead. The researchers used a colony of mice raised in a large plastic bubble, called an isolator, that was completely sterile, lacking even a single bacterium. They introduced a single type of bacteria into the mouse colony, but it mutated quickly into different types, making new bacteria...

2010-01-20 15:05:07

Biologists at the University of Pennsylvania studying the processes of evolution appear to have resolved a longstanding conundrum: How can organisms be robust against the effects of mutations yet simultaneously adaptable when the environment changes? The short answer, according to University of Pennsylvania biologist Joshua B. Plotkin, is that these two requirements are often not contradictory and that an optimal level of robustness maintains the phenotype in one environment but also allows...

2008-07-18 06:00:22

Research and Markets (http://www.researchandmarkets.com/research/8cb5a3/evolution_in_healt) has announced the addition of the "Evolution in Health and Disease" report to their offering. A fully revised edition of a volume written by the worlds leading authorities on this subject. It discusses how the evolution of humans and their pathogens have generated important medical issues, covering both infectious and degenerative diseases. It presents important ideas that are not yet sufficiently...


Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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