title: The failure to separate human X-and Y-spermatozoa by the millipore filtration technique.
abstract: Millipore filtration of motile human spermatozoa with the use of a pore size of 5 micrometer without applying high or low pressure results in a small but statistically significant increase of Y-spermatozoa in the filtrate. Immobilized spermatozoa do not pass through the membrane.
mesh_terms: D005260:Female; D006801:Humans; D008297:Male; D008851:Micropore Filters; D011312:Pressure; D012743:Sex Preselection / Q000379:methods; D013094:Spermatozoa / Q000648:ultrastructure*; D014960:X Chromosome; D014998:Y Chromosome