In which of the following disorders does an a | vedclass

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(D) Klinefelter's syndrome is caused by the presence of an additional copy of the $X$ chromosome,resulting in a karyotype of $47, XXY$. Thus,the total

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Both $(b)$ & $(c)$

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(D) Klinefelter's syndrome is caused by the presence of an additional copy of the $X$ chromosome,resulting in a karyotype of $47, XXY$. Thus,the total number of chromosomes is $47$.Down's syndrome is caused by the presence of an additional copy of chromosome number $21$ (trisomy $21$),resulting in a total of $47$ chromosomes.Turner's syndrome is characterized by the absence of one $X$ chromosome,resulting in a karyotype of $45, XO$,meaning the individual has $45$ chromosomes.Therefore,both Klinefelter's syndrome and Down's syndrome involve individuals with $47$ chromosomes.

In which of the following disorders does an affected individual possess $47$ chromosomes?

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