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Sounds like a species in Hardy-Weinberg equilibrium.

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14y ago

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How does environmental pressure affect natural selection?

When nothing happens to exert strong population pressure on that population, natural selection favors the allele frequency already present. When mutations cause new traits, natural selection weeds these traits out because they're not as efficient as the others.


Natural selection is due to?

beneficial mutations


Which mutations are NOT subject to natural selection - lethal physiological neutral or morphological?

Neutral mutations confer no benefits or handicaps and are therefore not affected by natural selection.


Which is not a way in which natural selection affects the distributions of phenotypes?

Mutation is not a way in which natural selection affects the distributions of phenotypes. Mutations introduce new genetic variations, which can then be acted upon by natural selection to influence the distribution of phenotypes within a population.


What are the 5 factors that influence genetic variability in a population?

Population Size, Mate Selection, Gene flow between Populations, Mutations and Natural Selection Hope that helps


Are new alleles made by natural selection?

No - natural selection does not create new alleles. Variation in alleles needs to exist in the population in order for natural selection to occur. Natural selection will involve the change in allele frequencies over time, but it does not create new alleles. New alleles are the result of mutations.


Evolution and natural selection stop if groups of a species are isolated from each other... true or false?

False. Isolation promotes natural selection of the unique mutations and recombinations in an isolated population, thus leading to evolution.


How do mutations relate to natural selection?

Mutation, a copying error in the replication of DNA, can give rise to variation in an organisms phenotype and if this new phenotype is beneficial to survival and reproductive success ( as little as 1% ) it will be selected naturally against the immediate environment, then if this so selected organism leave many descendents with the same beneficial traits then the populations gene pool will change in allele frequency and you have evolution. ( a 19th century sentence Darwin would be proud of! )


What are the 4 main theories of evolution?

The four main theories of evolution are natural selection, genetic drift, gene flow, and mutations. Natural selection is the process by which beneficial traits become more common in a population. Genetic drift is the random fluctuation of allele frequencies in a population. Gene flow refers to the transfer of genes between populations. Mutations are the source of new genetic variation in a population.


How does slow change over time occur genetically?

Through mutations in DNA, and natural selection of advantageous mutations.


Why are mutations important to the evolution of a species?

Mutations are important because they create genetic diversity within a population, which is essential for adaptation to changing environments. Beneficial mutations can provide an advantage for survival and reproduction, leading to their potential spread in a population over time. This process drives evolution by natural selection.


Explain the role of mutations in evolution?

Mutations are the material upon which natural selection acts. Evolution is a two sided coin. One side is mutation; the other side is natural selection. Without mutation there is no significant variation. Mutations are, however, ubiquitous. Every organism is a mutant. Evolution can be summarized as the non random survival of randomly varying replicators.