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What do you call a variation to a particular characteristic?
A trait
When two extreme phenotypes are selected in natural selection the intermediate phenotypes become?
The intermediate phenotypes tend to be selected against, resulting in stabilizing selection that favors the extreme phenotypes. This can lead to a reduction in genetic variation within the population, as individuals with intermediate traits are less likely to survive and reproduce.
What type of gene expression typically generates a continuum of varying phenotypes?
Quantitative trait loci (QTL) typically generate a continuum of varying phenotypes through polygenic inheritance, where multiple genes contribute to a single trait. This type of gene expression results in a range of phenotypic outcomes due to the additive effects of alleles, environmental influences, and interactions among genes. Traits like height, skin color, and intelligence often exhibit this continuous variation rather than discrete categories.
What phenotype distribution pattern is common with polygenic inheritance?
A continuous variation of phenotypes is common with polygenic inheritance, often resulting in a bell-shaped curve known as a normal distribution. This means that individuals will exhibit a range of phenotypes with no clear-cut categories.
What is a result of polygenic inheritance?
Polygenic inheritance results in traits that are controlled by multiple genes, leading to a wide range of possible phenotypes within a population. This can contribute to continuous variation in traits such as height, skin color, and intelligence.
What is decontinuous variation?
Variation within a population in which few or no intermediate phenotypes fall between the extremes.
What kind of variation must exist in a population that has a wide range of phenotypes?
Genetic variation must exist within the population, meaning individuals have different alleles. This genetic diversity results in a wide range of phenotypes that can be observed. Environmental factors can also contribute to phenotypic variation within the population.
What is phenotypic variation?
Phenotype variation is slight variations in a phenotype that are caused by the expression of an organism's genes or the influence of environmental factors. A species can have several different phenotypes within it.
How does the variation contribute survival of organisms?
Variation in Genotypes result in variations of Phenotypes which lead to the Possibility of Biological Development that did end up being Survival of the Fittest.
What modes of selection leads to a reduction in variation but no change in the mean?
Stabilizing selection is the mode of selection that can lead to a reduction in variation without changing the mean of a trait. In this type of selection, extreme phenotypes are selected against, while intermediate phenotypes are favored, resulting in a narrower range of phenotypic variation but maintaining the same mean.
What do you call a variation to a particular characteristic?
A trait
When two extreme phenotypes are selected in natural selection the intermediate phenotypes become?
The intermediate phenotypes tend to be selected against, resulting in stabilizing selection that favors the extreme phenotypes. This can lead to a reduction in genetic variation within the population, as individuals with intermediate traits are less likely to survive and reproduce.
What is the number one factor that determines variation in climate?
latitude
What type of gene expression typically generates a continuum of varying phenotypes?
Quantitative trait loci (QTL) typically generate a continuum of varying phenotypes through polygenic inheritance, where multiple genes contribute to a single trait. This type of gene expression results in a range of phenotypic outcomes due to the additive effects of alleles, environmental influences, and interactions among genes. Traits like height, skin color, and intelligence often exhibit this continuous variation rather than discrete categories.
What characteristic within populations causes natural to occur?
genetic variation
What characteristic within populations cause natural selection to occur?
Genetic variation. If there were no variation in the genes/phenotype then natural selection would have nothing to select from.
A genetic characteristic of the individual?
A genetic characteristic of an individual refers to a trait that is determined by their genes, such as eye color, blood type, or susceptibility to certain diseases. These characteristics are inherited from parents and can vary among individuals.
