Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/…

Which one of the following conditions in humans is correctly matched with its chromosomal abnormality/ linkage?
  1. Down syndrome - 44 autosomes $+\mathrm{XO}$
  2. Klinefelter syndrome - 44 autosomes + XXY
  3. Colour blindness - Y-linked
  4. Erythroblastosis foetalis - X-linked

Solution

Downs syndrome $-45+\mathrm{XX}$ or $45+\mathrm{XY}$

Asked in: NEET 2008 (Mains)

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