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Which condition is correctly matched with its chromosomal abnormality?

  1. A
    Down syndrome —
  2. B
    Klinefelter syndrome —
  3. C
    Colour blindness — Y-linked
  4. D
    Erythroblastosis foetalis — X-linked

Solution & Step-by-step Explanation

Klinefelter syndrome occurs when a male has an extra X chromosome (). Down syndrome is Trisomy 21 (47 chromosomes). Colour blindness is X-linked recessive.

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Which condition is correctly matched with its chromosomal abnormality?
A
Down syndrome —
B
Klinefelter syndrome —
C
Colour blindness — Y-linked
D
Erythroblastosis foetalis — X-linked

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