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What is a type of selection in which individuals at both ends of the distribution curve have higher fitness than those near the middle?
disruptive selection
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What is the type of selection in which individuals at one end of the distribution curve higher fitness than individuals in the middle of at the other end?
stabilizing selection
What is the type of selection where individuals nears the center of a distribution curve have higher fitness than those at the extremes?
It's usually called stabilizing selection.
When individuals near the center of the curve have higher fitness than individuals at either end of the curve?
Stabilizing Selection
When the largest organisms are most fit it shows what kind of selection?
When the largest organisms are most fit, it shows a pattern of directional selection, where individuals at one extreme of a trait distribution have higher fitness. This can lead to a shift in the trait distribution over time, favoring the larger size.
What type of natural selection takes place when individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle?
Disruptive selection.
What are the differences between directional selection and disruptive selection in the process of natural selection?
Directional selection occurs when individuals at one extreme of a trait have a higher fitness, leading to a shift in the population towards that extreme. Disruptive selection occurs when individuals at both extremes of a trait have higher fitness, leading to the population splitting into two distinct groups.
The type of selection in which individuals at one end of a curve have the highest fitness is called?
Directional selection. In this type of selection, the advantageous trait in a population shifts towards one extreme as individuals with that trait have higher fitness and are more likely to survive and reproduce.
What type of selection always results in the narrowing of the bell curve distribution of alleles?
Directional selection always results in the narrowing of the bell curve distribution of alleles. This occurs when individuals at one extreme of the phenotypic range have a higher fitness, causing the frequency of the alleles associated with that extreme to increase in the population over time.
What type of selection may eliminate intermediate phenotypes?
Disruptive selection can eliminate intermediate phenotypes by favoring extreme phenotypes, leading to a bimodal distribution. This selection occurs when individuals with extreme traits have a higher fitness than those with intermediate traits, resulting in the reduction of the intermediate phenotype in the population.
Three ways natural selection picks a phenotype?
stabilizing selection: when individuals near the center of the curve have a higher fitness than individuals at either end of the cure, keeping the center at its current location but narrows the overall graph directional selection: when individuals at one end of the curve have a higher fitness than individuals at the other end, or middle, causing the entire curve to move as the character trait changes disruptive selection: when individuals at the upper and lower ends of the curve have higher fitness than individuals near the middle, causing the single curve to be cut into two These three types of selection are brought about by natural selection, so whichever one is favored, then the genes evolve in that specific direction. natural selection acts on the genotype, but the results are seen in the phenotype
When individuals at only one end of the bell curve of phenotype frequencies have high fitness the result is?
Directional selection, where individuals with phenotypes at one extreme of the bell curve have a higher fitness compared to others. This can result in a shift in the population towards that extreme phenotype over generations.
Does stabilizing selection favors average individuals?
Yes, stabilizing selection favors average individuals by selecting against extreme phenotypes and maintaining the status quo. It arises when individuals with intermediate traits have a higher fitness compared to those with extreme traits, leading to a reduction in genetic variation over time.
