I.F. Zhimulev, Polytene Chromosomes, Heterochromatin, and Position Effect Variegation: General Remarks.
Morphology of the Heterochromatic Regions in the Chromosomes of Divided Cells.
Genetic Content of the Heterochromatic Regions of Mitotic Chromosomes.
Diminution of Chromatin and Chromosomes.
Centromeric Heterochromatin in Polytene Chromosomes.
Heterochromatin of the Chromosomes Restricted to Cells of the Germ Line.
Changes in Expression of Genes Dependent on Their Position in the System of the Genome.
Genetic Inactivation under Position Effect Variegation.
Modification of Gene Expression under Position Effect.
Time of Genetic Inactivation in Development.
Unusual Cases of Position Effect.
Molecular and Cytogenetic Aspects of Position Effect.
Current Concepts of the Mechanisms of Position Effect Variegation.
Heterochromatinization of Chromosome Regions and Regulation of Gene Activity.