Overview: Although debated since the time of Darwin, the evolutionaryrole of mutation is still controversial. In over 40 chapters fromleading authorities in mutation and evolutionary biology, this booktakes a new look at both the theoretical and experimental measurementand significance of new mutation. Deleterious, nearly neutral,beneficial, and polygenic mutations are considered in their effects onfitness, life history traits, and the composition of the gene pool.Mutation is a phenomenon that draws attention from many differentdisciplines. Thus, the extensive reviews of the literature will be
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