title: THE CAPACITY FOR INCREASE IN CHROMOSOMALLY POLYMORPHIC AND MONOMORPHIC POPULATIONS OF DROSOPHILA PSEUDOOBSCURA.
mesh_terms: D000818:Animals; D002875:Chromosomes; D004330:Drosophila; D005298:Fertility; D012098:Reproduction; D012106:Research
keywords: DROSOPHILA; EXPERIMENTAL LAB STUDY; FERTILITY; REPRODUCTION