[Supernumerary microchromosome without phenotypic manifestation in a family with Down's syndrome].
D000328:Adult; D002875:Chromosomes / Q000032:analysis; D003582:Cytogenetics; D004314:Down Syndrome / Q000235:genetics*; D005260:Female; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D010641:Phenotype
Nadpocetný mikrochromozóm bez fenotypového projevu v rodinĕ s výskytem Downova syndromu.