[Role of bivalent metal ions in the formation of the structure of polytene chromosomes].
D000818:Animals; D002413:Cations, Divalent; D002875:Chromosomes; D004175:Diptera; D004492:Edetic Acid; D066298:In Vitro Techniques; D012469:Salivary Glands / Q000166:cytology*; D012965:Sodium Chloride
D002413:Cations, Divalent; D012965:Sodium Chloride; D004492:Edetic Acid
O roli ionov dvukhvalentnykh metallov v formirovanii struktury politennykh khromosom.