-ploid-, -ploidy-, -plo-

(Greek: a fold; folded)

A condition in which there are two or more chromosome sets derived from two different species or genera
The condition of being amphidiploid.
aneuploid (adjective), more aneuploid, most aneuploid
A reference to, or descriptive of, the condition of having an abnormal number of chromosomes for the species indicated.
aneuploidy (s) (noun), aneuploidies (pl)
1. The condition of having an abnormal number of chromosomes for the species indicated.
2. Etymology: from Greek an-, "not" + eu-, "well" + ploos, "fold" + eidos, "form, shape".
autoploid, autoploidy, autopolyploid, autopolyploidy
Relating to an individual or cell with two or more copies of a single haploid set; depending on the number of multiples of the haploid set, autoploid's are referred to as autodiploids, autotriploids, autotetraploids, autopentaploids, autohexaploids, etc.
haplodiploidy (s) (noun), haplodiploidies (pl)
A genetic system which is found in some animals in which males develop from unfertilized eggs and are haploid, and females develop from fertilized eggs and are diploid; or an organism or cell that has two sets of chromosomes or twice the haploid number.
1. Having only a single set of chromosomes.
2. Having the gametic chromosome number.

Each human gamete normally has twenty-three chromosomes, the haploid number of chromosomes, half the number of chromosomes contained in most types of cells in the body.

Male gametes are usually small and motile (spermatozoa), whereas female gametes (oocytes) are larger and nonmotile.

3. Having a single set of each chromosome in a cell or cell nucleus.

In most animals, only the gametes (reproductive cells) are haploid.

Having more than twice the basic number of chromosomes.
The chromosomal constitution of a cell containing multiples of the normal number of chromosomes.
1. In genetics, having three times the haploid number of chromosomes in the cell nucleus.
2. Possessing three representatives of each chromosome.