title: Diploid-tetraploid mosaicism in a malformed boy.
abstract: In a mentally retarded and malformed boy who is two years old, a diploid-tetraploid mosaicism was identified by G-banding. Clinical and cytogenetical findings are discussed.
mesh_terms: D000015:Abnormalities, Multiple / Q000235:genetics*; D002675:Child, Preschool; D002871:Chromosome Banding; D004171:Diploidy; D006801:Humans; D008607:Intellectual Disability / Q000235:genetics*; D008214:Lymphocytes / Q000648:ultrastructure; D008297:Male; D009030:Mosaicism; D011123:Polyploidy