title: [Heterosis, macromolecular composition and several physico-chemical properties of the nucleolar-chromatic complex].
abstract: The nucleolar-chromatin complex of the hybrids liver cells is shown to contain a larger amount of RNA and phospholipids. When teeated with 1.0 M NaCl nucleoproteins of hybrid organisms display greater dissociation. A large number of free loci was determined in the matrix when titrating nucleolar chromatin complex with actinomycin "D". The effect of heterosis might be connected with a specific physiochemical state of chromosome in hybrid organisms.
mesh_terms: D000818:Animals; D002466:Cell Nucleolus / Q000032:analysis*; D055598:Chemical Phenomena; D002621:Chemistry; D002843:Chromatin / Q000032:analysis*; D002850:Chromatography, Gel; D004247:DNA / Q000032:analysis; D006657:Histones / Q000032:analysis; D006823:Hybrid Vigor; D006824:Hybridization, Genetic; D008099:Liver / Q000032:analysis / Q000648:ultrastructure*; D051379:Mice; D008806:Mice, Inbred AKR; D008810:Mice, Inbred C57BL; D009698:Nucleoproteins / Q000032:analysis; D010743:Phospholipids / Q000032:analysis; D012313:RNA / Q000032:analysis
chemical_list: D002843:Chromatin; D006657:Histones; D009698:Nucleoproteins; D010743:Phospholipids; D012313:RNA; D004247:DNA
vernacular_title: Geterozis, makromolekuliarnyĭ sostav i nekotorye fiziko-khimicheskie svoĭstva iadryshko-khromatinovogo kompleksa.