title: Marker (X)-linked mental retardation.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D002648:Child; D005260:Female; D005817:Genetic Counseling; D008040:Genetic Linkage; D005819:Genetic Markers; D006579:Heterozygote; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D007360:Intelligence; D008214:Lymphocytes / Q000648:ultrastructure; D008297:Male; D010641:Phenotype; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D013737:Testis / Q000002:abnormalities; D014960:X Chromosome / Q000648:ultrastructure*
chemical_list: D005819:Genetic Markers