title: Progenitive sex ratio among functioning sperm cells.
authors.affiliation: Department of Biology, Lehigh University, Bethlehem, PA.
authors.forename: B
authors.initials: B
authors.lastname: Bean
mesh_terms: D006801:Humans; D008297:Male; D012744:Sex Ratio; D013094:Spermatozoa / Q000648:ultrastructure*; D014998:Y Chromosome