Artificial selection also known as selective breeding is when humans select and breed organisms that they choose due to their desirable features. As a consequence of this type of breeding animals of a particular variety become the fittest in the population due to artificial means rather than through natural selection.
- Changes of allele frequencies in the gene pool
- Increased number of homozygotes, and less heterozygotes in the population.
- Less bio diversity, leading to greater susceptibility of populations to pathogens and or changes in environmental conditions.
Examples of artificial selection
- Selecting beef cattle on the base of their meat yield and non fatty carcass.
- Selecting dairy cattle on the basis of milk yield and butterfat content.
- Selecting rams on the basis of the fineness of their wool fibre and the yield of greasy fleece.
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