Which of the following does not represent tri | vedclass

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(D) Trisomy is a type of aneuploidy where an extra chromosome is present in a diploid set,represented as $(2n + 1)$.$1$. Down's syndrome is caused by

Vedclass · Accepted Answer

Turner's syndrome

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(D) Trisomy is a type of aneuploidy where an extra chromosome is present in a diploid set,represented as $(2n + 1)$.$1$. Down's syndrome is caused by the presence of an additional copy of chromosome number $21$ $(2n + 1 = 47)$.$2$. Klinefelter's syndrome is caused by the presence of an additional $X$ chromosome in males,resulting in a genotype of $XXY$ $(2n + 1 = 47)$.$3$. Turner's syndrome is caused by the absence of one $X$ chromosome in females,resulting in a genotype of $XO$ $(2n - 1 = 45)$,which is an example of monosomy,not trisomy.Therefore,Turner's syndrome does not represent trisomy.

Which of the following does not represent trisomy?

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In which disorder is the $XXY$ karyotype present?

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Mark the correct option with respect to monosomy.

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