title: POPULATION CYTOLOGY OF BRITISH GRASSHOPPERS. I. CHIASMA VARIATION IN CHORTHIPPUS BRUNNEUS, CHORTHIPPUS PARALLELUS AND OMOCESTUS VIRIDULUS.
mesh_terms: D000818:Animals; D002455:Cell Division; D002875:Chromosomes; D005854:Germ Cells; D006110:Grasshoppers; D007313:Insecta; D012106:Research; D006113:United Kingdom
keywords: CELL DIVISION; CHROMOSOMES; EXPERIMENTAL LAB STUDY; GERM CELLS; GREAT BRITAIN; INSECTS