title: Inquiring into sex.
mesh_terms: D000818:Animals; D004330:Drosophila; D005260:Female; D018451:Homosexuality, Male / Q000235:genetics*; D006801:Humans; D008297:Male; D012725:Sexual Behavior; D012726:Sexual Behavior, Animal; D014481:United States; D014960:X Chromosome / Q000235:genetics