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The most prominent disadvantage of artificially selected species is that they are very susceptible to disease. Since certain traits are bred for, variation within the species is greatly diminished, causing them to become... More »

www.reference.com Science Biology Molecular Biology & DNA

According to the Annenberg Foundation, examples of artificial selection include the breeding of thoroughbred racehorses, and the breeding of animals used for meat, such as domesticated cows, pigs, sheep and chickens. Oth... More »

www.reference.com Science Environmental Science

One advantage of artificial selection, a process by which humans control the development of a plant or animal by choosing which traits to emphasize during breeding, is that it allows for an emphasis on certain beneficial... More »

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Disruptive selection tends to increase genetic variation in populations, according to About.com. It is the opposite of stabilizing selection, which tends to drive a population toward a mean genotype and eliminate outlier... More »

www.reference.com Science Biology Molecular Biology & DNA

Mate selectivity, movement of individuals between populations, small populations, mutations and natural selection can all disrupt genetic equilibrium. In the absence of these factors, the frequencies of genetic traits in... More »

www.reference.com Science Biology Molecular Biology & DNA

The majority of fungi does not have a negative effect on humans, although some species can cause disease. One example of this is indoor mold, which can cause and exacerbate respiratory conditions, according to the Univer... More »

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Georges-Louis Leclerc, Comte de Buffon, was one of the first scientists in the 1700s to suggest that species could evolve and change depending on a number of factors. The scientist was also one of the earliest to suggest... More »

www.reference.com Science Biology Molecular Biology & DNA