title: Presidential address: Sex and the single schistosome.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002842:Chromatids / Q000648:ultrastructure; D002871:Chromosome Banding; D002874:Chromosome Mapping; D002875:Chromosomes / Q000648:ultrastructure*; D005260:Female; D006570:Heterochromatin / Q000648:ultrastructure; D049673:History, 20th Century; D007621:Karyotyping; D008297:Male; D010274:Parasitology / Q000266:history; D012547:Schistosoma / Q000235:genetics* / Q000648:ultrastructure; D012551:Schistosomatidae / Q000235:genetics* / Q000648:ultrastructure; D012728:Sex Chromatin / Q000648:ultrastructure; D012730:Sex Chromosomes / Q000648:ultrastructure*; D012732:Sex Determination Analysis; D014481:United States
chemical_list: D006570:Heterochromatin