Definition that contains chromosome number
- meiosis (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
- heteroploid (genetics) an organism or cell having a chromosome number that is not an even multiple of the haploid chromosome number for that species
- reduction division (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
- miosis (genetics) cell division that produces reproductive cells in sexually reproducing organisms; the nucleus divides into four nuclei each containing half the chromosome number (leading to gametes in animals and spores in plants)
- aneuploid having a chromosome number that is not an exact multiple of the haploid number
- aneuploidy an abnormality involving a chromosome number that is not an exact multiple of the haploid number (one chromosome set is incomplete)