(also known as artificial selection)
It involves identifying individuals with desired characterisitcs and using them to parent the next generation. Offspring that do not exhibit the desired characteristics are killed, or at least prevented from breeding, In this way alleles for unwanted characterisitcs are bred out of the population. The variety of alleles in the populations is deliberately restricted to a small number of desired alleles.
Ofver many generations, this will lead to a population all of which possess the desired qualities but which has reduced genetic diversity.
Selective breeding is commonly carried out in order to produce high-yielding breeds of domesticated animals and strains of plants.
Comments
No comments have yet been made