Question

When chromosome sets are present in multiple of 'n', the condition is termed
A. Diploidy
B. Haploidy
C. Euploidy
D. Aneuploid

Answer 1

Hint: Ploidy refers to a cell or an organism's number of sets of homologous chromosomes in the genome.The number of chromosomes present in a single full chromosome set is called the number (x) of the monoploid. The haploid number (n) refers to the total number of chromosomes (sperm or egg cells formed by meiosis in sexual reproductive preparation) contained in a gamete.

Complete answer:
Euploidy is a disorder in which one or more complete sets of chromosomes occur in a cell or organism. Euploidy happens when a cell has a multiple of the haploid number of chromosomes, in other words.

Hence, the correct answer is option (C).

Additional information:
Humans are diploid species, bearing in their somatic cells two full chromosome sets: one set of their father's 23 chromosomes and one set of their mother's 23 chromosomes. A complete complement of 46 chromosomes is given by the two sets combined. This total number of individual chromosomes is called the chromosome number (counting all the complete sets).

Note: Virtually all sexually reproductive organisms consist of diploid or greater somatic cells, but the extent of ploidy can vary greatly between different organisms, between different tissues within the same organism, and at different stages in the life cycle of an organism. There are polyploid species in half of all recognised plant genera, and about two-thirds of all grasses are polyploid. Most animals are uniformly diploid, while polyploidy is widespread in invertebrates, reptiles, and amphibians. Ploidy differs between individuals of the same species (as in social insects) in some species, and unlike the majority of the body being diploid (as in the mammalian liver), whole tissues and organ systems can be polyploid in others.