A mathematical model has been derived for selection against the homozygous recessive genotype. The following equation was obtained, where g is the frequency of the a allele, and s is the selection coefficient for the aa genotype (the selection coefficient for the AA and Aa genotypes is 0): q(1– sq) 1- są If the selection coefficient is 0.3 and the initial frequency of the a allele is 0.8, what is the new frequency of the a allele after one generation of random mating?

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Genetic Evolution

Sexual reproduction produces distinct population variations. Heredity determines the traits and qualities to be passed down to the progeny. Over time, this variation within-species is also affected by the process of human evolution. The study of how genetic variation leads to evolutionary changes is known as genetic evolution. If a trait helps an organism to survive and reproduce, it is more likely to be passed down the generations. It is rare that such traits result in a completely distinct set of traits in descendants than the ancestral population; this can result in the emergence of a new species.