title: Sex vesicle loss: a possible explanation of the excess of XO over XXY conceptuses in mice and men.
mesh_terms: D000782:Aneuploidy; D000818:Animals; D005260:Female; D006801:Humans; D008297:Male; D008540:Meiosis; D051379:Mice; D012729:Sex Chromosome Aberrations; D013045:Species Specificity; D013090:Spermatocytes / Q000648:ultrastructure*; D013094:Spermatozoa / Q000648:ultrastructure*; D015053:Zygote / Q000648:ultrastructure