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Yes, traits that are phenotypical in nature and confer some survival and reproductive advantage, then the alleles that gave rise to these traits become more frequent in the populations gene pool and evolution takes place.

So, natural selection is acting on genes in the individuals and population are evolving from this process.

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12y ago

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Is inheritance a requirement for natural selection?

Yes it does. Without variance in the organisms genome, that gives variance to the phenotype, there would be nothing for natural selection to select from.


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.


Can natural selection act on a population with no variation traits?

The trait is the same for all organisms.


What does natural selection only act on?

It acts on populations.


What is natural selection and what level of organization does it act on?

Natural selection is a process where individuals with advantageous traits are more likely to survive and reproduce, passing on those traits to the next generation. It acts on the level of individual organisms within a population.


Does natural selection act on genotypes?

Indirectly, yes it does. But it can only act on genotypes through their phenotypes.


How can genetic drift and gene flow affect natural selection?

Genetic drift can reduce genetic variation within a population, making it harder for natural selection to act upon beneficial traits. Gene flow, on the other hand, can introduce new genetic variation into a population, potentially increasing the pool of traits for natural selection to act upon. Overall, both genetic drift and gene flow can influence the effectiveness of natural selection by altering the genetic composition of populations.


Why is genetic variation important for natural selection to drive evolution?

Genetic variation is important for natural selection to drive evolution because it provides the raw material for natural selection to act upon. Without genetic variation, there would be no diversity in traits for natural selection to favor or eliminate, and evolution would not be possible.


Why are vestigial structures not removed by natural selection?

Nature selects against only harmful traits


What type of traits does natural selction act on?

Heritable traits that confer some survival or reproductive advantage, or natural selection will cull traits that confer the opposite to survival and reproductive advantage. So, the individual organisms, or his genes, are selected and these alleles increase in frequency in populations and evolution takes place.


Does natural selection require genetic variation in order to drive the process of evolution?

Yes, natural selection requires genetic variation to drive the process of evolution. Genetic variation provides the raw material for natural selection to act upon, leading to changes in the traits of a population over time.


Does natural selection act on individuals or on a broader scale within a population?

Natural selection acts on individuals within a population. It is the process by which certain traits that are advantageous for survival and reproduction become more common in a population over time.