title: Inactivation of one of the X chromosomes in females is a biological phenomenon of clinical importance.
mesh_terms: D000818:Animals; D004798:Enzymes / Q000235:genetics; D000795:Fabry Disease / Q000235:genetics; D005260:Female; D005819:Genetic Markers; D006467:Hemophilia A / Q000235:genetics; D006801:Humans; D009865:Oocytes / Q000648:ultrastructure; D011247:Pregnancy; D012728:Sex Chromatin; D012730:Sex Chromosomes; D014960:X Chromosome
chemical_list: D004798:Enzymes; D005819:Genetic Markers