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Can natural selection occur without variation in a population?
no there is no genetic variation for natural selection to act upon
What requires natural selection to occur in a population?
Natural selection requires variation in traits within a population, heritability of those traits, and differential reproductive success based on those traits. Without these components, natural selection cannot act on a population.
Why is variation beneficial to a population that is undergoing change?
Yes, it is. If there is variation in a populations, and a sudden catastrophic event occurs, there is more of a chance that some of the individuals in the population will survive, and the population will not die out.
Why is low genetic variation a problem?
Low Genetic variationis the raw material of evolution. Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction.
A bell shaped curve of phenotypic variation is a representation of?
A bell shaped curve of phenotypic variation is a graphical representation of the distribution of a trait within a population. It shows that most individuals in the population have an average value for the trait, with fewer individuals on the extreme ends of the spectrum.
Why must a population have a genetic variation in order for natural selection to occur?
Without variation there is nothing to select from.
Can natural selection occur without variation in a population?
no there is no genetic variation for natural selection to act upon
What happens to a population when genetic variation decreases?
When genetic variation decreases in a population, it becomes less adaptable to changes in the environment. This can lead to reduced fitness and an increased risk of extinction. Inbreeding and higher susceptibility to diseases are also common consequences of decreased genetic variation.
What requires natural selection to occur in a population?
Natural selection requires variation in traits within a population, heritability of those traits, and differential reproductive success based on those traits. Without these components, natural selection cannot act on a population.
How large should the sample be to be large enough?
Span the full spectrum of a population's genetic variation. <apex> Reflects the genetic variation of a population...
Why is variation beneficial to a population that is undergoing change?
Yes, it is. If there is variation in a populations, and a sudden catastrophic event occurs, there is more of a chance that some of the individuals in the population will survive, and the population will not die out.
What causes variation of traits in a population?
the enviroment.
What is decontinuous variation?
Variation within a population in which few or no intermediate phenotypes fall between the extremes.
What increases genetic variations?
A large population increases genetics variation. Mutation will also increase genetics variation.
Why is low genetic variation a problem?
Low Genetic variationis the raw material of evolution. Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction.
What is a difference within a population?
A variation within the population. Height in humans is an example of this.
What type of population is most susceptible to loss of genetic variation?
Small Population
