title: A 7q- son of an XYY father.
mesh_terms: D000328:Adult; D002675:Child, Preschool; D002872:Chromosome Deletion; D002906:Chromosomes, Human, 6-12 and X; D006801:Humans; D008297:Male; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D014997:XYY Karyotype / Q000235:genetics*