» epigenetics, genetics & genomics and techniques

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image: Repainting Ancient Birds

Repainting Ancient Birds

By Megan Scudellari | July 1, 2011

Using synchrotron rapid scanning X-ray fluorescence to map the distribution of trace metals in avian fossils over 120 million-year-old, researchers reconstruct the pigment patterns of their feathers—revealing some of the extinct birds' long-lost colors.


image: OPSINS: Tools of the trade

OPSINS: Tools of the trade

By Edward S. Boyden | July 1, 2011

The optogenetic toolset is composed of genetically encoded molecules that, when targeted to specific neurons in the brain, enable the electrical activity of those neurons to be driven or silenced by light. 


image: Meet the Crystal Smasher

Meet the Crystal Smasher

By The Scientist Staff | July 1, 2011

Take a tour of the Linac Coherent Light Source (LCLS), whose ultra-powerful X-ray beam is being used to solve the structures of proteins that are notoriously hard to crystallize.


image: Optogenetics: A Light Switch for Neurons

Optogenetics: A Light Switch for Neurons

By Edward S. Boyden | July 1, 2011

This animation illustrates optogenetics—a radical new technology for controlling brain activity with light. 


image: Smashing Crystals

Smashing Crystals

July 1, 2011

A powerful new X-ray–generating laser is imaging smaller crystals than ever before.


image: Epigenetics—A Primer

Epigenetics—A Primer

By Stefan Kubicek | March 1, 2011

Epigenetic events regulate the activities of genes without changing the DNA sequence. Different genes are expressed depending on the methyl-marks attached to DNA itself and by changes in the structure and/or composition of chromatin. 


image: Death or Damage of Dopamine Neurons

Death or Damage of Dopamine Neurons

By Bobby Thomas and M. Flint Beal | February 1, 2011

The hallmark pathology of Parkinson’s disease is the damage and death of dopamine producing neurons in the brain. 


image: The Evolution of Volvox

The Evolution of Volvox

By N/A | January 1, 2011

The volvocine algae are a model system for studying the evolution of multicellularity, as the group contains extant species ranging from the unicellular Chlamydomonas to a variety of colonial species and the full-fledged multicellular Volvox varieties.


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