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    Individuals Who Have an Extra Chromosome on the 21<sup>st</sup> Chromosomal
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Individuals Who Have an Extra Chromosome on the 21st Chromosomal

Question 74

Question 74

Multiple Choice

Individuals who have an extra chromosome on the 21st chromosomal pair usually develop signs of:


A) Vrolik syndrome.
B) Klinefelter syndrome.
C) Down's syndrome.
D) Turner syndrome.

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