Abstract
THE desire to predetermine sex before conception and thus alter the natural sex ratio has led many investigators to seek methods of separating the populations of X- and Y-bearing sperm and over the past 50 years, a number of claims of success have been made. Ericsson et al.1 described a technique for the isolation of fractions rich in human Y sperm. On repeating the methods outlined in their paper, we were unable to find any evidence of enrichment of human Y sperm.
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References
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EVANS, J., DOUGLAS, T. & RENTON, J. An attempt to separate fractions rich in human Y sperm. Nature 253, 352–354 (1975). https://doi.org/10.1038/253352a0
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DOI: https://doi.org/10.1038/253352a0
