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Cells

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close-up of an eye

BABY BLUE  Using human eye cells, researchers fashioned an artificial eye surface that could be used to study and test treatments for eye diseases.

simulation of bundled chromosomes

PACK IT UP  Before dividing, a cell bundles each of its chromosomes (gray and colored strings in this simulation of a single chromosome) into a tightly-packed, orderly cylinder. A protein that creates a central, spiral scaffold (red links) is partly responsible for the efficient packing, a new study finds.

TAILOR-MADE  A semisynthetic strain of Escherichia coli makes glowing green proteins using amino acids not found in nature.

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