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Cells

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QUICK DRAW  Chemically reactive molecules called reactive oxygen species spur embryo cells to assemble a drawstring-like apparatus to close wounds, fruit fly research suggests.

needle with spindle and egg

BATTERY SWAP A technique to suck a chromosome-containing structure called the spindle (white, in needle) out of a mother’s egg and place it in a donor egg emptied of its chromosomes but with healthy mitochondria can help prevent mitochondrial diseases.

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KEEP AN EYE OUT  In a new game, citizen scientists help Alzheimer’s researchers find stalls (black segment) in brain blood vessels (outlined) in mice.

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