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Genetic and Rare Diseases Information Center (GARD)

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Chromosome 21q duplication

Other Names for this Disease
  • 21q duplication
  • 21q trisomy
  • Duplication 21q
  • Partial trisomy 21q
  • Trisomy 21q
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These Web pages are updated as the Genetic and Rare Diseases Information Center receives questions and as new information becomes available. If you don’t see many information resources on this page, it may be because the Information Center hasn’t yet received a question about this condition.

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Basic Information

  • Genetics Home Reference (GHR) contains information on Chromosome 21q duplication. This website is maintained by the National Library of Medicine.