title: Size classes of the head and flagellum of Drosophila spermatozoa.
mesh_terms: D000818:Animals; D001699:Biometry; D004330:Drosophila; D005407:Flagella; D014644:Genetic Variation; D008297:Male; D008858:Microscopy, Phase-Contrast; D012730:Sex Chromosomes; D013094:Spermatozoa / Q000166:cytology*; D013696:Temperature