News tagged with genetic switch
Before animals first walked on land, fish carried gene program for limbs
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.
Jul 11, 2011 |
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A mystery solved: How genes are selectively silenced
Cells read only those genes which are needed at a given moment, while the others are chemically labeled and, thus, selectively turned off. Scientists at the German Cancer Research Center have now been the first to discover ...
Oct 18, 2010 |
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Scientists unlock one mystery of tissue regeneration
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.
Feb 03, 2011 |
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How hemp got high: Canadian scientists map the cannabis genome
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 proper ...
Oct 19, 2011 |
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Study provides insight into evolution of first flowers
(PhysOrg.com) -- Charles Darwin described the sudden origin of flowering plants about 130 million years ago as an abominable mystery, one that scientists have yet to solve.
May 18, 2009 |
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'Supergene' is key to copycat butterflies
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.
Aug 12, 2011 |
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The first malaria-proof mosquito
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 ...
Jul 15, 2010 |
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Stem cell breakthrough: Monitoring the on switch that turns stem cells into muscle
In a genetic engineering breakthrough that could help everyone from bed-ridden patients to elite athletes, a team of American researchers—including 2007 Nobel Prize winner Mario R. Capecchi—have created a "switch" that allows ...
Medicine & Health / Medical research
Mar 30, 2009 |
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Embryo development obeys the laws of hydrodynamics
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 ...
Aug 18, 2011 |
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Genetic switch discovered that turns on pain
(PhysOrg.com) -- Aberdeen scientists have discovered a 'switch' that turns on a gene that lets us feel pain, in a finding that could be a step towards the development of new painkilling drugs.
Medicine & Health / Neuroscience
Dec 21, 2010 |
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Frozen flies may yield secrets for human organ transplants
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.
Aug 19, 2010 |
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Researchers use light to switch on gene expression
Imagine being able to control genetic expression by flipping a light switch. Researchers at North Carolina State University are using light-activated molecules to turn gene expression on and off. Their method enables greater ...
May 10, 2012 |
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Scientists achieve first rewire of genetic switches
Researchers in Manchester have successfully carried out the first rewire of genetic switches, creating what could be a vital tool for the development of new drugs and even future gene therapies.
Medicine & Health / Medical research
Jan 25, 2010 |
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Mutated gene in zebrafish sheds light on blindness in humans
Among zebrafish, the eyes have it. Inside them is a mosaic of light-sensitive cells whose structure and functions are nearly identical to those of humans. There, biologists at The Florida State University ...
Medicine & Health / Medical research
Mar 24, 2009 |
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Gene Associated with Rare Adrenal Disorder Appears To Trigger Cell Death
(PhysOrg.com) -- A gene implicated in Carney complex, a rare disorder of the adrenal glands, appears to function as a molecular switch to limit cell growth and division, according to a study by researchers at the National ...
Jul 13, 2010 |
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