News tagged with genetic system
Alan Turing's 1950s tiger stripe theory proved
Researchers from King's College London have provided the first experimental evidence confirming a great British mathematician's theory of how biological patterns such as tiger stripes or leopard spots are ...
Feb 19, 2012 |
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Self or non-self: Social amoeba rely on genetic 'lock and key' to identify kin
The ability to identify self and non-self enables cells in more sophisticated animals to ward off invading infections, but it is critical to even simpler organisms such as the social amoebae Dictyostelium discoideum.
Jun 23, 2011 |
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Study shows evolutionary adaptations can be reversed, but rarely
(PhysOrg.com) -- Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether evolutionary adaptations can be reversed.
May 11, 2011 |
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Scientists construct synthetic proteins that sustain life
(PhysOrg.com) -- In a groundbreaking achievement that could help scientists "build" new biological systems, Princeton University scientists have constructed for the first time artificial proteins that enable ...
Jan 06, 2011 |
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Parasitic wasps' genomes provides new insights into pest control, genetics (w/ Video)
Parasitic wasps kill pest insects, but their existence is largely unknown to the public. Now, scientists led by John H. Werren, professor of biology at the University of Rochester, and Stephen Richards at ...
Jan 14, 2010 |
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Study reveals H1N1 unexpected weakness
The H1N1 influenza virus has been keeping a secret that may be the key to defeating it and other flu viruses as well.
Medicine & Health / Medical research
Dec 10, 2009 |
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Study: Cancer may pass from mother to unborn child
(PhysOrg.com) -- A new study has provided genetic evidence for the first time that it is possible for a mother to transmit cancer to her unborn child via the placenta.
Oct 14, 2009 |
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Researchers identify a protein critical for memory, learning
Researchers from the University of Toronto and The Hospital for Sick Children (Sick Kids) have made a breakthrough discovery that may eventually change the way physicians approach treatment of learning and memory defects ...
Biology /
Feb 24, 2009 |
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Researchers develop nanodevice manufacturing strategy using DNA 'building blocks'
Researchers at the Wyss Institute for Biologically Inspired Engineering at Harvard University have developed a method for building complex nanostructures out of short synthetic strands of DNA. Called single-stranded ...
Nanotechnology / Bio & Medicine
16 hours ago |
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50-year cholera mystery solved: Answers may help clear the way for a new class of antibiotics
For 50 years scientists have been unsure how the bacteria that gives humans cholera manages to resist one of our basic innate immune responses. That mystery has now been solved, thanks to research from biologists at The University ...
May 29, 2012 |
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What makes a worm say 'yuck'
Researchers at Harvard-affiliated Massachusetts General Hospital (MGH) say they have uncovered a way that animals detect pathogens in their bodies that allows their systems to respond before cellular damage ...
May 15, 2012 |
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Locked down, RNA editing yields odd fly behavior
Because a function of RNA is to be translated as the genetic instructions for the protein-making machinery of cells, RNA editing is the body's way of fine-tuning the proteins it produces, allowing us to adapt. The enzyme ...
Apr 24, 2012 |
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Tailored optical material from DNA: Nano spiral staircases modify light
In the human body genetic information is encoded in double-stranded deoxyribonucleic acid building blocks, the so-called DNA. Using artificial DNA molecules, an international team of scientists headed by the ...
Nanotechnology / Nanomaterials
Mar 14, 2012 |
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Deadly bird parasite evolves at exceptionally fast rate
A new study of a devastating bird disease that spread from poultry to house finches in the mid-1990s reveals that the bacteria responsible for the disease evolves at an exceptionally fast rate. What's more, ...
Feb 09, 2012 |
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Unveiling malaria's 'invisibility cloak'
The discovery by researchers from the Walter and Eliza Hall Institute of a molecule that is key to malaria's 'invisibility cloak' will help to better understand how the parasite causes disease and escapes from the defenses ...
Jan 18, 2012 |
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