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3Novices:From strands to droplets—new insights into DNA control

A host of proteins and other molecules sit on the strands of our DNA, controlling which genes are read out and used by cells and which remain silent. This aggregation of genetic material and controlling molecules, called chromatin, makes up the chromosomes in our cell nuclei; its control over which genes are expressed – or not – is what determines the difference between a skin cell and a neuron, and often between a healthy cell and a cancerous one.http://ift.tt/2t1TLm9
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3Novices:A single electron’s tiny leap sets off ‘molecular sunscreen’ response

In experiments at the Department of Energy’s SLAC National Accelerator Laboratory, scientists were able to see the first step of a process that protects a DNA building block called thymine from sun damage: When it’s hit with ultraviolet light, a single electron jumps into a slightly higher orbit around the nucleus of a single oxygen atom.http://ift.tt/2rJHzm0
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