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Question

Aneuploidy is the term applied for the

A
Gene mutation
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B
Chromosomal mutation
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C
Chromosomal mutations involving the addition or loss of one or more chromosomes
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D
Chromosomal mutation involving the addition of one or more complete set of chromosomes
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Solution

The correct option is D Chromosomal mutations involving the addition or loss of one or more chromosomes
The presence of the abnormal number of chromosomes in a cell is called as aneuploidy. Chromosomal mutations involving the addition or loss of one or more chromosomes results in the abnormal number of chromosomes in a cell to which the term aneuploidy is applied. For example, a human cell having 45 or 47 chromosomes instead of the usual 46. One of the examples for aneuploidy is Klinefelter syndrome (KS) which describes a group of the chromosomal disorder in which there is at least one extra X chromosome to a normal male karyotype, 46, XY. XXY aneuploidy is the most common disorder of sex chromosomes in humans,
So, the correct answer is 'option c'.

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