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What process provides the genetic variability that natural selection acts on during evolution?
Wiki User
∙ 11y ago
The ultimate source of variation is mutation. However, recombination, or crossing over, can produce enormous amounts of variation by shuffling alleles into different combinations. Combined, the two processes produce the variation upon which natural selection can act, and which results in evolution.
Wiki User
∙ 15y ago
Wiki User
∙ 11y agomutation
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Which is not part of darwins theory of natuarl selsction?
Random processes are not part of the theory of evolution by natural selection. Excepting random genetic mutation that provides the variation natural selection works on.
What is genetic variability?
Genetic variability is the tendency of individual genetic characteristics in a population to vary from one another.
How does genetic variation and environmental factors affect evolution by natural selection?
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What is a mutation and how does it relate to evolution?
A mutation is any change in the DNA. Mutations provide the genetic variation that evolution by natural selection needs to select from.
What four factors can cause evolution to occur?
1.) Mutation 2.) Selection 3.) Gene Flow 4.) Genetic Drift
Can Evolution proceed even if there is no genetic variability?
Not biological evolution in the standard sense. No variation, genetic variability, and there is nothing for natural selection to select from.
Is Genetic diversity is the raw material for evolution?
Mutations occur randomly, and every once in a blue moon, a mutation offers some benefit to a individual of a particular species in a particular place and allows that individual to have more offspring than its peers. If the mutation provides enough benefit to some individuals, they will have a tendency to survive and reproduce (as per the principle of natural selection). Natural selection reduces variability by killing off less fit individuals. It is mutations that increase the variability and allow evolution (successful natural selection, not mass extinction, but controlled deaths) to occur. Without variability there is no evolution.
What are genetic mutation and natural selection?
Together, genetic mutation and natural selection determine in what 'direction' evolution proceeds.
Which of the three types of natural selection works to preserve genetic variability within the population?
stabilizing
Which is not part of darwins theory of natuarl selsction?
Random processes are not part of the theory of evolution by natural selection. Excepting random genetic mutation that provides the variation natural selection works on.
What contributes to genetic variability within a population?
natural selection nonrandom mating size of population genetic drift gene flow
Why cross pollination takes place?
To create more genetic variability so as give momentum to the process of evolution.
What is the requirement of selection that must be the stability of traits any traits will cause failure?
Greater genetic variability results in better selection for a stable character
What is the mechanism of evolution?
The main driving mechanism of evolution is natural selection. Though genetic drigt and gene flow can also cause evolution.
What is genetic variability?
Genetic variability is the tendency of individual genetic characteristics in a population to vary from one another.
How genetic variation and environmental factors affect evolution by natural selection?
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What is a genetic algorithm?
A method that mimics evolution and natural selection to solve the problem.
