A team of Canadian researchers has sequenced the genome of Cannabis sativa, the plant that produces both industrial hemp and marijuana, and in the process revealed the genetic changes that led to the plant's drug-producing ...
Biotechnology
Oct 19, 2011
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Vincent Fleury, a researcher at the Paris Diderot University, studied the early stage of development when embryonic cells first form a flat sheet of cells before folding into a U-shape, resembling a folded pancake. He demonstrated ...
General Physics
Aug 18, 2011
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Since Charles Darwin, biologists have pondered the mystery of "mimicry butterflies", which survive by copying the wing patterns of other butterflies that taste horrible to their predators, birds.
Plants & Animals
Aug 12, 2011
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Genetic instructions for developing limbs and digits were present in primitive fish millions of years before their descendants first crawled on to land, researchers have discovered.
Biotechnology
Jul 11, 2011
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Just a few genes make enterohaemorrhagic E. coli (EHEC) extremely dangerous to humans. If it were not for these genes, EHEC would hardly differ from harmless enteric bacteria. Bioinformatics scientists from the Saarbrücken ...
Cell & Microbiology
Jun 10, 2011
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(PhysOrg.com) -- During the development of organisms, a particular event repeatedly occurs: a signal appears temporarily, but the processes it triggers must be maintained – for example, when the fate of cells in the ...
Biotechnology
Apr 18, 2011
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Researchers at the University of Rochester have now identified a genetic switch that controls oxidative stress in stem cells and thus governs stem cell function.
Cell & Microbiology
Feb 3, 2011
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Researchers at North Carolina State University have found a way to "cage" genetic off switches in such a way that they can be activated when exposed to UV light. Their technology gives scientists a more precise way to control ...
Biochemistry
Oct 28, 2010
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When kitchens become infiltrated with fruit flies, especially during the dog days of summer, homeowners might wish that the flying pests would just turn to ice.
Biotechnology
Aug 19, 2010
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For years, researchers worldwide have attempted to create genetically altered mosquitoes that cannot infect humans with malaria. Those efforts fell short because the mosquitoes still were capable of transmitting the disease-causing ...
Biotechnology
Jul 15, 2010
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