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Automated DNA sequencing

Increasingly, scientists are using machines to help them read DNA code. For automatic analysis, DNA fragments are tagged with fluorescent dyes: a different colour for each DNA letter. The fastest machines pull the different sized fragments through a very fine tube, or capillary. A laser beam then detects the moving, fluorescing DNA fragments as they pass. This is much quicker than manual DNA sequencing.

Increasingly, scientists are using automated machines to help them read DNA code.
Increasingly, scientists are using automated machines to help them read DNA code.
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