title: [Familial Yqs chromosome in 4 generations].
abstract: A structural aberration of the Y chromosome (Yqs) was identified in a 4-year-old child who visited a physician for right unilateral cryptorchidism. The structure of this chromosome was determined through bands C, G and NOR. The family cytogenetic study allowed for the detection of the Yqs in up to four generations. A comparison is made of the different phenotypes associated with this marker in the medical literature, concluding that this is probably due to another polymorphism of the Y chromosome.
authors.forename: A
authors.initials: A
authors.lastname: Cervantes-Peredo
authors.forename: S
authors.initials: S
authors.lastname: Kofman-Alfaro
mesh_terms: D002675:Child, Preschool; D006801:Humans; D008297:Male; D010375:Pedigree; D012729:Sex Chromosome Aberrations / Q000235:genetics*; D014998:Y Chromosome / Q000032:analysis*
vernacular_title: Yqs familiar en cuatro generaciones.