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Helping hue

Glenda Cooper
Thursday 12 December 1996 00:02 GMT
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A flashing green jellyfish is helping the fight against cancer. The fluorescent protein which the creature flashes on and off as a defence mechanism is being used to light up parts of living cells. By incorporating the genes into the DNA of human cells, it is possible to give human proteins a fluorescent "tag" and as a result scientists can see how individual proteins in a cell move when the cell divides.

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