karyotype: Quick Facts

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karyotype; Down syndrome

Klinefelter syndrome

Karyotype and human chromosome number

A karyotype image shows pairs of red-stained chromosomes arranged by size and shape on a black background, illustrating how chromosome analysis detects abnormalities.

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chromosome sex chromosome Autosome gene Why Are Chromosomes in Pairs?major histocompatibility complex telomere chromosome number chromatid ploidy centromere