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Mutation is the ultimate source of genetic variation, as it allows for the creation of newer and stronger genes that can change how an animal functions.Without mutation, there is no genetic variation, and therefore no diversity of life on Earth.


Ultimate source of variation is MUTATION and nothing else. Mutations are mistakes that occur in DNA sequence of genome: Point mutation e.g. nonsense and missense mutations Frame-shift mutation e.g. insertion or deletion mutations Any change in genetic DNA will be translated into a defect in the corresponding protein. Thus mutation is responsible for appearance of a phenotypic variation.


Yes, mutations are the ultimate source of genetic variation in populations, while genetic drift and directional selection removes variation. As other users have highlighted in their answers, many mutations (incl. synonymous mutations but not only and soma mutations) do not bring up any the underlying genetic variance of phenotypic traits.


Genetic diversity in a population comes from two main mechanisms: mutation and sexual reproduction. Mutation, a change in DNA, is the ultimate source of new alleles, or new genetic variation in any population. The genetic changes caused by mutation can have one of three outcomes on the phenotype.


Ultimate source of genetic variation is 4:06 300+ LIKES. 300+ VIEWS. 300+ SHARES. What is the source of variation in monoparental (asexual) reproduction ? 2:18 400+ LIKES. 600+ VIEWS. 600+ SHARES. Allelic sequence variation where more than one variant (allele) at a locus in a human population with a frequency greater than 0.01 is refered to as ...


Mutation is the ultimate source of all genetic variation found in natural populations and the only new material available for natural selection to work on. {Ernst Mayr, POPULATIONS, SPECIES, & EVOLUTION, 1970, p.102} Mutations are, indeed, the ultimate source of all new genetic materials . . .


The ultimate source of variation is through genetic mutation. Natural variations seen in mussels: Variations that are acquired during life due to environmental influence or habits will not be inherited by progeny. Variations brought about by mutation changes: 1. either the base sequence of the genetic material, 2. or its location in genome,


Mutation is the ultimate source of genetic variation. In natural populations of finite size, however, mutations and the genetic variation they introduce are constantly removed by genetic drift and by purifying and stabilizing natural selection. Therefore, to understand how genetic variation is generated and maintained, one must know the rate by ...


K. McGuigan, J.D. Aguirre, in Encyclopedia of Evolutionary Biology, 2016. Abstract. Heritable phenotypic variation determines how a population’s mean phenotype evolves under directional selection. The additive genetic covariance matrix, G, summarizes the genetic variation among individuals (due to individual’s carrying different alleles), and can be used to predict (or possibly reconstruct ...


It should be noted that mutation is the ultimate source of genetic variation in all populations—new alleles, and, therefore, new genetic variations arise through mutation. Genetic Drift Another way a population’s allele frequencies can change is genetic drift ( [Figure 1] ), which is simply the effect of chance.