Natural selection is a linkage of disequilibrium by combining alleles. Then random mating causes a different frequency in living organisms causing the Harding- Weinberg Equilibrium. With this deviation, this causes more variation in organisms and an increase in mutations.
Natural Selection is where organisms adapt to their environment to survive and produce more offspring. This theory was introduced by Charles Darwin. Natural Selection helps prevent new alleles from rising in frequency. Selection minimizes genetic variation. The variation is either heterozygote or homozygote. Heterozygote is an organism that consists of two different alleles. A homozygote is an organism that consists of two identical alleles. Natural selection usually favor traits or behaviors that is best fitted. Natural selection is based on competition between which organisms will survive in their environment. The weakest organisms will soon die out and the organisms that carry on the strong genes will pass on in their offspring. This usually happens when an organism is growing accustom to the new environment that they are located at. .
Selection is not based on the appearance of organisms. Colby states how the term "survival of the fittest" is misleading in natural selection. He states, ", survival is only one component of selection-and perhaps one of the less important ones in many populations. On surviving for organisms in their environment, there are various for organisms to survive. Organisms will depend on reproduction, how mates will attract to each other, and physical fitness. Sexual selection is natural selection arising through preference by one sex for certain characteristics in individuals of the other sex. Sexual selection is liable for survival. One example would be when peacocks tail are attracting other peacocks based on the coloring and patterns in their tails. In order for the traits to pass on, reproduction must occur.