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Why must a population have a genetic variation in order for natural selection to occur?
Wiki User
∙ 8y ago
Without variation there is nothing to select from.
Flavio Mitchell
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Is Natural selection a source of genetic variation in a population?
No, natural selection works on that genetic variation presented to it.
What requires natural selection to occur in a population?
genetic variation
Is it possible for a population to undergo natural selection?
No, there is no genetic variation upon which natural selection can operate.
Can natural selection occur without variation in a population?
no there is no genetic variation for natural selection to act upon
How does genetic variation support Natural Selection?
Genetic variation in itself does not 'support' natural selection: it is what natural selection acts upon.
What id genetic variation?
Genetic Variation is a measure of the genetic differences there are within populations or species. For example, a population with many different alleles at a locus may be said to have a lot of genetic variation at that locus. Genetic variation is essential for natural selection to operate since natural selection can only increase or decrease frequency of alleles already in the population
What is the signifiance of the genetic variation and natural selection?
genetic variation (from any of several sources) provides options to try.natural selection determines which of those options help the population most.
What are the mechanisms of natural selection?
Basically, natural selection, genetic drift and gene flow into and out of population of organisms.
What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
What two different sources of genetic variation in a plant or animal population?
The main source of genetic variation is a large population with a large gene pool.
Cows that give more milk than other cows are an example of?
Natural variation, natural selection, artificial selection, genetic engineering, etc.
In order for evolution by natural selection to occur what has to happen?
There must be genetic variation, the variation must be heritable, and there must be differential reproduction (due to competition).
