bn:16756248n
Noun Concept
Categories: Down syndrome
EN
Genetic origins of Down syndrome  Genetics of Down syndrome  Genetic of Down syndrome
EN
Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on chromosome 21, either in whole or part. Wikipedia
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EN
Down syndrome is a chromosomal abnormality characterized by the presence of an extra copy of genetic material on chromosome 21, either in whole or part. Wikipedia
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