👉 Octaploidy, also known as tetraploidy, is a genetic condition in which an organism has two sets of chromosomes. This means that each chromosome contains three copies of itself, rather than four, as is typical for normal human or animal cells. In octaploidy, there are two sets of chromosomes, one from each parent. There are several theories about the cause of this condition, but the most common explanation is that it may be caused by a genetic mutation in the cell