Artificial Selection : Genetic variation is used by humans to improve the quality of animals and plants. Humans select individuals with desirable traits from the population and separate them from those who do not have these traits. Now interbreeding is done between the selected individuals. This process itself is called artificial selection. If this process continues for several generations, eventually a new species with desirable characteristics is produced.
Through artificial selection by animal breeders, species of many domesticated animals with desirable characteristics have been developed from their common ancestors, such as dog, horse, pigeon, Chicken, cow, goat, sheep and pig etc. Similarly, plant breeders have also obtained the best variety of useful plants like wheat, rice, sugarcane, cotton, vegetables and fruits etc.
Artificial selection is similar to natural selection, only in this, instead of nature, useful traits are created by humans Selected traits that are useful to humans are developed.