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Directional selection favors one extreme phenotype in a population, causing a shift in the distribution of traits towards that extreme. This occurs when the environment changes and one extreme trait becomes more advantageous for survival and reproduction.

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What are the three patterns of of natural selection?

The three patterns of natural selection are directional selection, stabilizing selection, and disruptive selection. Directional selection favors individuals at one extreme of a trait distribution, stabilizing selection favors the intermediate phenotype, and disruptive selection favors individuals at both extremes of a trait distribution.


Which form of natural selection is shown on the chart stabilizing disruptive or directional?

To determine which form of natural selection is represented on the chart, it would be essential to examine the characteristics of the population depicted. Stabilizing selection favors average traits, disruptive selection favors extreme traits, and directional selection favors one extreme over the other. Without seeing the chart, it’s impossible to specify which type is shown, but you can identify the type by looking for these patterns in trait distribution.


What is the different way in which species can evolve as a result of natural selection?

Species can evolve through natural selection via several mechanisms, including directional selection, stabilizing selection, and disruptive selection. Directional selection favors one extreme phenotype, leading to a shift in the population's traits over time. Stabilizing selection favors intermediate phenotypes, reducing variation and enhancing the population's overall fitness. Disruptive selection, on the other hand, favors extreme traits at both ends of the spectrum, potentially leading to speciation as the population diverges.


What is natural selection that acts against one type of extreme form of a polyygenic trait to reduce genetic variation and change the average value of a trait within a population called?

Stabilizing selection is the type of natural selection that acts against extreme forms of a polygenic trait to reduce genetic variation and maintains the average value of the trait within a population. It favors the intermediate phenotype, leading to a narrowing of the range of variation for that trait over time.


What form of natural selection is shown on a graph as selection against an extreme?

Directional selection is shown on a graph as selection against an extreme. This occurs when individuals at one extreme of a trait distribution have lower fitness than individuals with intermediate phenotypes or those at the opposite extreme. Over time, this can lead to a shift in the average phenotype of a population.

Related Questions

What are the three patterns of of natural selection?

The three patterns of natural selection are directional selection, stabilizing selection, and disruptive selection. Directional selection favors individuals at one extreme of a trait distribution, stabilizing selection favors the intermediate phenotype, and disruptive selection favors individuals at both extremes of a trait distribution.


What selection favors organisms with phenotypes that are at one extreme rlative to the average phenotype?

Directional selection favors organisms with phenotypes at one extreme relative to the average phenotype. This occurs when individuals with traits at one end of a spectrum have higher fitness, leading to a shift in the population towards that extreme phenotype.


Which form of natural selection is shown on the chart stabilizing disruptive or directional?

To determine which form of natural selection is represented on the chart, it would be essential to examine the characteristics of the population depicted. Stabilizing selection favors average traits, disruptive selection favors extreme traits, and directional selection favors one extreme over the other. Without seeing the chart, it’s impossible to specify which type is shown, but you can identify the type by looking for these patterns in trait distribution.


Selection favors one extreme form of a trait in a population.?

Tends to result in a population whose individuals have extreme traits is what? ----> it is directional selection


What are the different types of natural selection and how do they impact the evolution of species?

There are three main types of natural selection: directional selection, stabilizing selection, and disruptive selection. Directional selection occurs when one extreme trait is favored over others, leading to a shift in the population towards that trait. Stabilizing selection favors the average trait, reducing genetic variation in a population. Disruptive selection favors extreme traits, leading to the divergence of a population into two distinct groups. These types of natural selection impact evolution by influencing which traits are passed on to future generations. Over time, they can lead to the adaptation of species to their environment and the emergence of new species.


What kind of natural Selection would eliminate one extreme?

Directional selection


What is direct selection?

Directional selection is when natural selection favors a single phenotype. It occurs when there is a shift in population towards an extreme version of a beneficial trait.


How do disruptive selection and directional selection differ in their impact on the evolution of a population?

Disruptive selection and directional selection are two types of natural selection that impact the evolution of a population in different ways. Disruptive selection favors extreme traits at both ends of the spectrum, leading to the divergence of a population into two distinct groups. On the other hand, directional selection favors one extreme trait, causing the population to shift towards that trait over time. In summary, disruptive selection promotes diversity within a population, while directional selection drives the population towards a specific trait.


What is natural selection that acts against one type of extreme form of a polyygenic trait to reduce genetic variation and change the average value of a trait within a population called?

Stabilizing selection is the type of natural selection that acts against extreme forms of a polygenic trait to reduce genetic variation and maintains the average value of the trait within a population. It favors the intermediate phenotype, leading to a narrowing of the range of variation for that trait over time.


What natural selection called at extreme phenotype?

This type of natural selection is called directional selection and does not display a normal curve of expressed traits, but a heavy set of data to the left of the curve that indicates the direction of selection of the extreme phenotype.Disruptive selection is where two extreme phenotypes are maintained in a population. This curve looks like a two humped camel in it's expression of these extreme traits.


How does the interplay between disruptive and directional selection influence the evolution of a population?

The interplay between disruptive and directional selection influences the evolution of a population by driving changes in the traits of individuals. Disruptive selection favors extreme traits, leading to the formation of distinct subgroups within the population. Directional selection, on the other hand, favors one extreme trait, causing a shift in the average trait value of the population over time. Together, these selection pressures can result in the diversification or adaptation of a population to its environment.


What form of natural selection is shown on a graph as selection against an extreme?

Directional selection is shown on a graph as selection against an extreme. This occurs when individuals at one extreme of a trait distribution have lower fitness than individuals with intermediate phenotypes or those at the opposite extreme. Over time, this can lead to a shift in the average phenotype of a population.