Down syndrome Notes: Definitions & Explanations PDF | Download eBooks
Study Down syndrome lecture notes PDF with biology definitions and explanation to study What is Down syndrome?. Study down syndrome explanation with biology terms to review biology course for online degree programs.
Down syndrome Definition:
Down syndrome is a disorder which is usually the result of an extra chromosome 21, so that each body cell has a total of 47 chromosomes.
Campbell Biology by J.B. Reece, L.A. Urry, M.L. Cain, S.A. Wasserman, P.V. Minorsky, R.B. Jackson
Down syndrome Notes:
Down syndrome is an example of a trisomic disorder. Down syndrome is the trisomy of chromosome 21 and is typically associated with physical growth delays, mild to moderate intellectual disability, and characteristic facial features. Trisomy is an important example of aneuploidy when the chromosomes fail to separate during meiosis. Trisomy occurs when one of the daughter cells receives two copies of chromosomes because the other received none.
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