title: [Alternative and non-alternative processes of the origin of chromosome aberrations].
abstract: Five differences that form the basis for chromosome aberrations division into exchanges and fragmentations are described. A fragmentation is a more variable component of aberrations that sometimes exhibit the properties of incompleteness. The period of exchanges formation is determined. In most objects, it lasts for about 4 h on an average. Osteichthyes have additional long-term patterns of cytogenetic changes occurrence which, in all appearance, favor the evolutionary processes in this group of vertebrates.
authors.forename: Iu A
authors.initials: IuA
authors.lastname: Mitrofanov
authors.forename: L N
authors.initials: LN
authors.lastname: Lesnikova
authors.forename: A Z
authors.initials: AZ
authors.lastname: Voskanian
authors.forename: V V
authors.initials: VV
authors.lastname: Otradnona
mesh_terms: D000705:Anaphase; D000818:Animals; D005075:Biological Evolution; D002477:Cells / Q000528:radiation effects; D002869:Chromosome Aberrations; D003582:Cytogenetics; D005399:Fishes; D008677:Metaphase; D008957:Models, Genetic; D016296:Mutagenesis; D011836:Radiation Tolerance; D016196:S Phase; D012854:Sister Chromatid Exchange; D013997:Time Factors
vernacular_title: Al'ternativnye i neal'ternativnye protsessy vozniknoveniia aberratsiĭ khromosom.