title: Distribution of heterochromatin in the karyotype of Rattus norvegicus.
mesh_terms: D000818:Animals; D002478:Cells, Cultured; D002874:Chromosome Mapping; D004622:Embryo, Mammalian; D005260:Female; D006570:Heterochromatin / Q000032:analysis*; D007621:Karyotyping; D008297:Male; D051381:Rats
chemical_list: D006570:Heterochromatin