News tagged with double helix

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Want to silence a gene? Pull here

(PhysOrg.com) -- Simply stretching DNA can silence a gene, scientists at the UA have discovered. The finding could point to a previously unknown gene control mechanism.

dateMar 21, 2011 in Biotechnology
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Scientists show how men amp up their X chromosome

What makes a man? His clothes? His car? His choice of scotch? The real answer, says Brown University biologist Erica Larschan, is the newly understood activity of a protein complex that, like a genetic power tool, gives enzymes ...

dateMar 02, 2011 in Genetics
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Unraveling the DNA stretching mystery

(PhysOrg.com) -- Using a new experimental test structure, biophysicists at JILA have unraveled part of a 15-year mystery in the mechanics of DNA -- just how the molecule manages to suddenly extend to almost ...

dateJan 20, 2011 in Biochemistry
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DNA and the 'magic rings' trick

(PhysOrg.com) -- A new study from UC Davis shows how, like a conjuring trick with interlocking rings, two interlocked pieces of DNA are separated after DNA is copied or repaired. The finding was published online Oct. 10 in ...

dateOct 11, 2010 in Cell & Microbiology
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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 ...

dateOct 04, 2010 in Medical research
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Is DNA evidence enough? An interview with David Kaye

(PhysOrg.com) -- Law professor David H. Kaye shares his insights into how the the use of DNA evidence has impacted our legal system. While its use has far-reaching implications, Kaye points out that "DNA is ...

dateJul 30, 2010 in Other
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