When chromosome sets are present in multiple of 'n', the condition is termed

Diploidy

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Haploidy

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Euploidy

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Aneuploidy

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Solution

The correct option is C Euploidy
1) Ploidy refers to the number of sets of homologous chromosomes in the genome of a cell or an organism. Each set is designated by n. Thus, the term diploidy refer to a state of being diploid, that is having two sets of the chromosomes (2n).
2) A haploid set consists of a single complete set of chromosomes (n).
3) Euploidy is a condition when a cell or an organism has one or more than one complete set of chromosomes. In other words, euploidy occurs whenever a cell has a multiple of the haploid number of chromosomes.
4) Aneuploidy is the presence of an abnormal number of chromosomes in a cell, for example a human cell having 45 or 47 chromosomes instead of the usual 46.
So, the correct answer is 'Euploidy'.

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