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(D) Aneuploidy is a condition characterized by a change in the chromosome number,which occurs either by the addition or deletion of one or more chromo

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Aneuploidy

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(D) Aneuploidy is a condition characterized by a change in the chromosome number,which occurs either by the addition or deletion of one or more chromosomes.Specifically,the addition of a single chromosome to a diploid set is known as trisomy $(2n+1)$,which is a type of aneuploidy.Euploidy refers to the variation in the number of complete sets of chromosomes,whereas haploidy and diploidy refer to the number of sets of chromosomes present in an organism.

If there is an addition of a single chromosome to the total set of chromosomes,it is called . . . . . . .

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