[Down's syndrome with G/G "tandem" translocation (author's transl)].
A three month old male with Down's Syndrome is presented. Cytogenetic studies reveal a count of 46 chromosomes with a G/G "tandem" translocation. New staining techniques show the marker chromosome closed at both ends and with two symmetrical bands.
D002869:Chromosome Aberrations; D002904:Chromosomes, Human, 21-22 and Y; D004314:Down Syndrome / Q000235:genetics*; D006801:Humans; D007223:Infant; D007621:Karyotyping; D008297:Male; D014178:Translocation, Genetic
Síndrome de Down por translocación infrecuente 21/21