News tagged with dna structures
Ticking of cellular clock promotes seismic changes in the chromatin landscape associated with aging
Like cats, human cells have a finite number of lives-once they divide a certain number of times (thankfully, more than nine) they change shape, slow their pace, and eventually stop dividing, a phenomenon called ...
Oct 03, 2010 |
4.8 / 5 (19) |
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Antarctic lake home to diverse community of viruses
(PhysOrg.com) -- A study of the genetic structure of viruses in an Antarctic lake has revealed an astonishing genetic richness in the large number of viral families discovered.
Nov 11, 2009 |
4.9 / 5 (17) |
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Graduate student finds a 'start/stop switch' for retroviruses
A University of British Columbia doctoral candidate has discovered a previously unknown mechanism for silencing retroviruses, segments of genetic material that can lead to fatal mutations in a cell's DNA.
Medicine & Health / Medical research
Apr 08, 2010 |
5 / 5 (14) |
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Physics of gene transcription unveiled
(PhysOrg.com) -- A research team has made precise measurements of where and how RNA polymerase encounters obstacles while it reads nucleosomal DNA.
May 14, 2010 |
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Geneticists publish largest-ever study on African genetics revealing origins, migration
African, American, and European researchers working in collaboration over a 10-year period have released the largest-ever study of African genetic data--more than four million genotypes--providing a library of new information ...
Apr 30, 2009 |
4.6 / 5 (10) |
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Researchers suspend, image single DNA molecules
(PhysOrg.com) -- Studying chemical modifications in the chromosomes of cells is akin to searching for changes in coiled spaghetti. Scientists at Cornell have figured out how to stretch out tangled strands ...
Chemistry / Analytical Chemistry
Oct 31, 2011 |
4.5 / 5 (10) |
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Sea lampreys jettison one-fifth of their genome
(PhysOrg.com) -- Researchers have discovered that the sea lamprey, which emerged from jawless fish first appearing 500 million years ago, dramatically remodels its genome. Shortly after a fertilized lamprey ...
Jul 20, 2009 |
4.9 / 5 (9) |
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Covering the bases: Quantum effect may hold promise for low-cost DNA sequencing, sensor applications
A ghostly property of matter, called quantum tunneling, may aid the quest for accurate, low-cost genomic sequencing, according to a new paper in Nature Nanotechnology Letters by Stuart Lindsay and his collab ...
Nanotechnology / Bio & Medicine
Mar 22, 2009 |
4.7 / 5 (9) |
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Good parents are predictable -- at least when it comes to corn
In order to breed new varieties of corn with a higher yield faster than ever before, researchers at the University of Hohenheim in Stuttgart, Germany, and other institutions are relying on a trick: early selection of the ...
Jan 15, 2012 |
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DNA motor programmed to navigate a network of tracks
Expanding on previous work with engines traveling on straight tracks, a team of researchers at Kyoto University and the University of Oxford have successfully used DNA building blocks to construct a motor ...
Nanotechnology / Bio & Medicine
Jan 22, 2012 |
5 / 5 (8) |
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Chemists create two-armed nanorobotic device to maneuver world's tiniest particles
Chemists at New York University and China's Nanjing University have developed a two-armed nanorobotic device that can manipulate molecules within a device built from DNA. The device is described in the latest issue of the ...
Feb 15, 2009 |
4.5 / 5 (8) |
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Genetic inspiration could show the way to revolutionise information technology
(PhysOrg.com) -- Chemists at the University of Reading have created a synthetic form of DNA that could transform how digital information is processed and stored.
Jun 28, 2010 |
4.6 / 5 (7) |
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DNA-based gel produces proteins without live cells
(PhysOrg.com) -- A new method developed by Cornell biological engineers offers an efficient way to make proteins for use in medicine or industry without the use of live cells. The proteins made in this way ...
Apr 01, 2009 |
5 / 5 (6) |
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Newly discovered DNA repair mechanism
Tucked within its double-helix structure, DNA contains the chemical blueprint that guides all the processes that take place within the cell and are essential for life. Therefore, repairing damage and maintaining the integrity ...
Medicine & Health / Medical research
Oct 04, 2010 |
5 / 5 (6) |
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Chemists Reach from the Molecular to the Real World with Creation of 3-D DNA Crystals
(PhysOrg.com) -- New York University chemists have created three-dimensional DNA structures, a breakthrough bridging the molecular world to the world where we live. The work, reported in the latest issue of ...
Sep 02, 2009 |
4.7 / 5 (6) |
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