| Euploidy | Aneuploidy |
| It refers to the state of having a chromosomes number that is an exact multiple of chromosomes number. | It refers to a condition in which one or few chromosomes are added or deleted from the chromosome number |
| A large variation in which the amount of genetic material increases by means of chromosomes sets. | A comparative small variation in which amount of genetic material increases by means of the number of chromosomes |
| Example , 2n diploid, 3N triploid | 2n-1, 2n+1 |
| Frequently occurs in plants and rarely in animals | Occurs both in plants and animals |
| May lead to the formation of new species | Leads to the imbalance in the number of gene product |