We report an unusual balanced translocation involving chromosomes 4 and 21 in a lady who had Down syndrome in her previous child. The most plausible explanation for this event is the 3:1 segregation of chromosomes at meiosis in her gametes leading to interchange trisomy 21.

Original languageEnglish
Pages (from-to)183-185
Number of pages3
JournalGenetic Counseling
Issue number2
Publication statusPublished - 2010

All Science Journal Classification (ASJC) codes

  • Medicine(all)
  • Genetics(clinical)


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