News tagged with dna molecules

Making and breaking heterochromatin

To fit the two-meter long DNA molecule into a cell nucleus that is only a few thousandths of a millimetre in size, long sections of the DNA must be strongly compacted. Epigenetic marks maintain these sections, ...

dateSep 25, 2012 in Cell & Microbiology
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Research: Hopping DNA supercoils

If you take hold of a DNA molecule and twist it, this creates 'supercoils', which are a bit like those annoying loops and twists you get in earphone cables. Research carried out by TU Delft, The Netherlands, ...

dateSep 14, 2012 in Cell & Microbiology
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Molecular code cracked

(Phys.org) -- Scientists have cracked a molecular code that may open the way to destroying or correcting defective gene products, such as those that cause genetic disorders in humans.

dateAug 17, 2012 in Cell & Microbiology
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Channeling our ion past

To understand how the first cells transported ions across their membranes, researchers are studying simple channels used by fungi to kill off bacteria.

dateJun 07, 2012 in Space Exploration
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DNA strands create tiniest Smileys

Harvard University scientists on Wednesday said they had created Smileys, Chinese characters and card-game symbols at scales of billionths of a metre using strands of DNA.

dateMay 30, 2012 in Bio & Medicine
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