Laser cell-sorter of human sperm

Laser cell-sorter of human sperm

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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. "Male" and "female" sperm can thus be sorted. The sperm are treated with a fluorescent marker that attaches in proportion to the amount of DNA present in each sperm head. "Male" (Y) chromosome sperm which produce a male foetus have less 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.

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Keywords: cell sorter, fluorescence cell sorter, high-tech, laser, laser cell sorter, laser sorter, laser sortr, laser srtr, lasers, male and female, scientific, sex determination, sorter, sperm, sperm selection, sperm sortr, sprm, technology, x y sperm types, x y types

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