Question:

A (non-gemete) cell from a woman with down syndrom contains?

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a (non-gemete) cell form a wonam with down syndrom contains

a)47 autosomes and 2 X chromosomes

b)47 autosomes and 1 X chromosome

c)46 autosomes and 2 X chromosomes

d)46 autosomes and 1 X chromosome

e)45 autosomes and 2 X chromosomes

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  1. E. 45 autosomes and 2 X chromosomes

    Normal non-gamete (i.e. diploid) cell contains 22 pairs (i.e. 44) of autosomes and one pair (i.e. 2) of s*x chromosomes. Down's syndrome is Trisomy 21. In other words, there are 3 instead of 2 copies of chromosome # 21.


  2. answer is e

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