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The central area of chromosomes, the centromere, contains DNA that has survived largely unchanged for hundreds of thousands of years, researchers at UC Davis and the Lawrence Berkeley Laboratory have found. (Credit: Sasha and Charles Langley) EM image of Pseudomonas phage Pf, an inovirus infecting Pseudomonas hosts. Inovirus capsids are long flexible filaments visible here after sample concentration and precipitation. (Courtesy of J. Driver and P. Secor, University of Montana) The lipid producing yeast, Yarrowia lipolytica, examined with light microscopy (left) and fluorescence microscopy (right), after being stained with Nile Red to visualize the lipid droplets inside (shown here in white). (Courtesy of Hal Alper) Detection of Percc1 expressing cells (red) amongst the epithelial cells (green) of the intestinal villi in a mouse. (Credit: Marco Osterwalder/Berkeley Lab) FISH of Nha-C enrichment with Hrr. lacusprofundi ACAM34-hmgA. Fluorescence micrograph shows individual Nha-C cells amongst Hrr. lacusprofundi cells. Nha-C cells labelled with a Cy5 (red fluorescence) conjugated probe; Hrr. lacusprofundi cells labelled with a Cy3 (yellow fluorescence, recolored to green to improve contrast) probe; all nucleic-acid containing cells stained with DAPI (blue fluorescence). Composite image of all three filters. Scale bars represent 2 µm. (Josh Hamm, UNSW) PECASE winner Wenjun Zhang atomic structures of saxiphilin and saxitoxin, a red tide algal bloom, and an American bullfrog (R. catesbeiana) A field of sorghum Charles Paradis, now a post-doctoral researcher at Los Alamos National Laboratory, holds a soil core sample taken from the Oak Ridge Field Research Site in Tennessee. The BONCAT+FACS optimization testing reported in the current study used samples such as this one. (Credit: Lance E. King/Y-12 National Security Complex)

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