title: X chromosome inactivation: heterogeneity of heterochromatin.
mesh_terms: D000818:Animals; D041321:Chromosomes, Human, X / Q000235:genetics / Q000378:metabolism; D020868:Gene Silencing; D006570:Heterochromatin / Q000235:genetics* / Q000378:metabolism; D006801:Humans; D009687:Nuclear Proteins / Q000378:metabolism; D012045:Regulatory Sequences, Nucleic Acid; D049951:X Chromosome Inactivation
chemical_list: D006570:Heterochromatin; D009687:Nuclear Proteins