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What is In a population a shift in the average population phenotype toward the mean and away from the physical extremes This process lowers phenotypic variety the population is more homogeneous?
Wiki User
∙ 10y ago
It is regression. Galton coined the term in the course of his study on the heights of parents and their children. His conclusion was that tall parents tended to have tall children and short parents had short children, but that the children's height regressed towards the mean height for the population.
Wiki User
∙ 10y ago
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The second and third terms of a proportion?
extremes
What is extreme proportion?
this is the outermost terms this is ''extremes''
What is the left side of a stem and leaf plot called?
lower extremes
Can an outlier be in the middle of a data set?
No, it cannot. It must be at one of the extremes.
What is the mathematical term the product of the mean equals the product of the extremes?
: The product of the means is equal to the product of the extremes. When you cross multiply to show 2 fractions are equivalent. Ex a/c =b/d so cross multiplying would show a x d = c x b c x b are the means a x d are the extremes Their products are equal in a proportion or equivalent fractions that is the answer and it is correct
The mode of natural selection in which both extremes in the range of a phenotype are favored is termed?
This mode is termed disruptive selection. It increases genetic diversity within a population by favoring individuals at both ends of the phenotypic spectrum.
The distribution of phenotypes for a typical polygenic trait can often be expressed as?
a bell-shaped curve known as a normal distribution. This distribution shows the range of phenotypes in a population, with most individuals clustering around the average phenotype and fewer individuals at the extremes of the distribution.
What is Digital Extremes's population?
Digital Extremes's population is 170.
Compare and contrast stabilizing directional and disruptive selection?
Stabilizing selection favors the average phenotype and reduces genetic diversity by selecting against extreme traits. Directional selection favors individuals at one extreme of the phenotypic range, leading to a shift in the population's average phenotype. Disruptive selection favors individuals at both extremes of the phenotypic range, increasing genetic diversity within the population.
The shift in body weight of sociable weaver birds towards an intermediate body weight is an example of selection?
Yes, the shift in body weight towards an intermediate range in sociable weaver birds can be an example of stabilizing selection. This type of selection favors individuals with traits closest to the average or intermediate value in the population, reducing extremes in the phenotypic variation.
What is decontinuous variation?
Variation within a population in which few or no intermediate phenotypes fall between the extremes.
Why do disruptive selection pressures tend to favor rapid evolutionary changes?
Disruptive selection pressures favor rapid evolutionary changes because they create strong selective pressures on extreme phenotypic traits, driving the population towards the extremes and away from the average. This results in a rapid shift in the population's genetic makeup towards the extreme traits, facilitating rapid adaptation to new environmental conditions.
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.
What are the 3 ways natural selection can affect a population?
Natural selection can affect a population by increasing the frequency of advantageous traits, decreasing the frequency of disadvantageous traits, and promoting the adaptation of individuals to their environment.
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
When was The Extremes created?
The Extremes was created in 1998.
How many pages does The Extremes have?
The Extremes has 393 pages.
