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The graphs of the 3 types of selection and label the average and the extremes?
In stabilizing selection, the average phenotype is favored, leading to a reduction in extreme phenotypes. In directional selection, one extreme phenotype is favored, causing a shift in the average towards that extreme. In disruptive selection, both extreme phenotypes are favored over the average, leading to a bimodal distribution in the population.
Which type of natural selection occurs when the extreme opposites in a phenotype range are selected?
Disruptive selection occurs when the extreme phenotypes in a population are favored over intermediate phenotypes. This can lead to the divergence of a population into two distinct groups with different traits.
What is the phenotype that is present in most individuals in nature?
The phenotype that is present in most individuals in nature is typically the wild type phenotype, which is the most common and often the ancestral form of a trait within a population. It is favored by natural selection due to its adaptability and overall fitness for survival in the environment.
The mode of natural selection in which both extremes in the range of a phenotype are favored is termed?
That would be disruptive selection.
What is disruptive selection and how does it impact the evolution of species in biology?
Disruptive selection is a type of natural selection where extreme phenotypes are favored over intermediate ones, leading to the divergence of a population into two distinct forms. This can result in the formation of new species as individuals with extreme traits are better adapted to different environmental conditions, driving the evolution of separate lineages.
In a population of horses an extreme phenotype is favored and the distribution of genes in that population shifts toward that phenotype This process is called selection?
the process is called an DIRECTIONAL selection.
The graphs of the 3 types of selection and label the average and the extremes?
In stabilizing selection, the average phenotype is favored, leading to a reduction in extreme phenotypes. In directional selection, one extreme phenotype is favored, causing a shift in the average towards that extreme. In disruptive selection, both extreme phenotypes are favored over the average, leading to a bimodal distribution in the population.
Explain how stabilizing selection would affect a graph of the distribution of phenotypes for a trait?
Stabilizing selection would result in a graph showing a peak at the intermediate phenotype, with fewer individuals at the extreme phenotypes. This is because individuals with intermediate phenotypes are favored, leading to the reduction of extreme phenotypes in the population over time.
Which type of natural selection occurs when the extreme opposites in a phenotype range are selected?
Disruptive selection occurs when the extreme phenotypes in a population are favored over intermediate phenotypes. This can lead to the divergence of a population into two distinct groups with different traits.
What 3 types of Selection pressures that affect a population structure?
The 3 types of selection pressure on a population: 1) "Stabilizing selection" = intermediate phenotypes are favored and extremes on both ends are eliminated. 2)"Directional selection" = is a mode of natural selection in which a single phenotype is favored, causing the allele frequency to continuously shift in one direction. 3) "Disruptive selection/ Diversifying selection" = describes changes in population genetics in which extreme values for a trait are favored over intermediate values
What are the 4 types of natural selection?
The four types of natural selection are stabilizing selection (where the average phenotype is favored), directional selection (where one extreme phenotype is favored), disruptive selection (where both extreme phenotypes are favored), and sexual selection (where traits that increase mating success are favored).
What is the phenotype that is present in most individuals in nature?
The phenotype that is present in most individuals in nature is typically the wild type phenotype, which is the most common and often the ancestral form of a trait within a population. It is favored by natural selection due to its adaptability and overall fitness for survival in the environment.
The two different extreme variations in a trait are favored in?
The two extreme variations in a are trait are favored in disruptive selection.
The two different extreme variation in a trait are favored in?
disruptive selection.
Compare and contrast stabilizing directional and disruptive selection?
Stabilizing selection is where a population is favored by just the right amount of a certain trait, and if they don't have the right amount of that certain trait then they die. Example: Human babies and birth weight, if the baby is too small, i gets sick. If the baby is too big, it cannot get through the pelvis; but just the right weight and it will come out lively and well. Disruptive selection is when an animal has to fit in with its environment; I.E., camouflage.
What is a shortage of farmland unequal distribution of farmland and favored treatment of the wealthy?
Armed conflict
Is directional selection considered a random change?
Directional Selection is a more extreme form of the trait is favored. Ex. Flamingoes with longer legs and necks. Punctuated Equilibrium is sudden changes, then long periods without change- may be a combination of both.
