title: Sex differences in human spatial ability: not an X-linked recessive gene effect.
mesh_terms: D000293:Adolescent; D000328:Adult; D002668:Child Rearing; D005260:Female; D005808:Genes, Recessive; D006801:Humans; D008297:Male; D008875:Middle Aged; D009679:Nuclear Family; D012730:Sex Chromosomes; D012737:Sex Factors; D013028:Space Perception; D014796:Visual Perception; D014960:X Chromosome