The localization of "ordinary" sex-linked genes in section 20 of the polytene X chromosome of Drosophila melanogaster.
D000818:Animals; D002869:Chromosome Aberrations; D002874:Chromosome Mapping; D004331:Drosophila melanogaster; D005796:Genes; D006570:Heterochromatin; D008297:Male; D008938:Mitosis; D009154:Mutation; D010641:Phenotype; D012469:Salivary Glands / Q000166:cytology; D012730:Sex Chromosomes
D006570:Heterochromatin