title: Increase in the number of histone genes in case of their deficiency in Drosophila melanogaster.
abstract: We have determined the number of histone structural genes in D. melanogaster heterozygotes for two different deficiencies of a histone locus in the 2d chromosome. The results indicate a possibility of histone genes increasing in number in the case of their deficiency through magnification and compensation, as has been shown for rRNA genes by other authors.
mesh_terms: D000818:Animals; D004261:DNA Replication; D004331:Drosophila melanogaster / Q000235:genetics*; D005796:Genes; D006579:Heterozygote; D006657:Histones / Q000235:genetics*; D009154:Mutation; D009693:Nucleic Acid Hybridization; D012313:RNA / Q000235:genetics
chemical_list: D006657:Histones; D012313:RNA