"Entomology." . . "Flies Drosophila." . . "Drosophila melanogaster." . . "Drosophila Melanogaster." . . . . . . . . . . . . . . . . . . . . . . . . "The biology of Drosophila" . . . . . "Biology of drosophilia" . . . "Spermatogenesis in Drosophila has been of special cytogenetic interestever since Morgan (1912, 1914) made his surprising discovery that genetic crossing is rare or absent in male Drosophila Melanogaster yet regularly present in the female Much is now Known regarding the significance of the post-diakinrtic stages of meiosis in male Drosophila, owing Chietfly to the theoretical analysis made by Darlington (19340). Elarly consideration of the difference in genetic crossing over between the sexes, however, had broyght with it the hope of a cytological revelation of a cytological revelation of both the physical mechanism of crossing over and something of the nature of the differences leading to alternative meiotic pathways in male and fermale aDrosophila." . . . . . . "Biology of drosophila"@en . . "Biology of drosophila" . . . . . . . . . . "Biology of Drosophila"@en . . "Biology of Drosophila" . . . . . . . . . "Drosophiles." . . "Drosophila." . . "Drosophila biológia." . . "Insetos (classificação)" . . "Taufliege." . . . . "Drosofila." . . "Biologie." . .