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Laser cell-sorter of human sperm

Laser cell-sorter of human sperm

T215/0139

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Credit

ARS PHOTO / SCIENCE PHOTO LIBRARY ARS PHOTO / SCIENCE PHOTO LIBRARY

Caption

Laser cell-sorter of sperm. Blue beam of laser light illuminates the nozzle (top centre) of a fluorescence activated cell-sorter of human sperm. The sperm are treated with a fluorescent marker that attaches in proportion to the amount of DNA present in each sperm head. DNA than "female" (X) chromosome sperm which produce a female foetus. The X sperm thus glow brighter in the cell-sorter; 1/4 million sperm can be sorted per hour. In vitro fertilisation can then produce a male or female foetus. Using this technique many sex-linked genetic diseases could be prevented.

Release details

Model release not required. Property release not required.

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