ploidia
Ploidia is a term used to describe the number and structure of chromosome sets in a cell or organism. It is essentially synonymous with the concept of ploidy, though ploidia appears in some historical or regional usages. The ploidia of a cell is typically described by the number of complete chromosome sets it contains, denoted as n for a haploid set, 2n for a diploid set, 3n for triploid, and so on.
In practical terms, a haploid organism has one complete set of chromosomes, a diploid organism has two,
Polyploidy arises through mechanisms such as genome duplication within a species (autopolyploidy) or hybridization between species
Examples include humans, where somatic cells are typically diploid (2n) and gametes are haploid (n); plants frequently