[Mechanisms maintaining genetic variability within a population (12)].
D000818:Animals; D004330:Drosophila / Q000033:anatomy & histology / Q000235:genetics*; D004331:Drosophila melanogaster / Q000033:anatomy & histology / Q000235:genetics; D005260:Female; D005518:Food Preferences; D014644:Genetic Variation; D010053:Ovary / Q000033:anatomy & histology; D013696:Temperature