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Any morphological and behavioral trait that is in hard inheritance, genetic inheritance. Remember, all organisms are variants and these traits vary from organism to organism and so natural selection selects the best adapted trait among the population of organisms against the immediate environment. The trait that confers better survivability and reproductive success, So, evolution, the change in allele frequency over time in a population of organisms, occurs.
Only natural selection confers adaptive change leading to speciation. Epigenetic changes are not adaptive changers.
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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.
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.
Natural selection can only act upon a certain trait if the trait is?
Heritable, meaning that it can be passed down from one generation to the next through genetic inheritance. Without a genetic basis, natural selection would not be able to change the frequency of that trait in a population over time.
What is disputive selection?
Disruptive selection is a type of natural selection that favors extreme traits over the average trait, leading to the divergence of characteristics within a population. This process can result in the formation of two distinct phenotypic groups with reduced variation between them.
When natural selection results in a shift toward the average of a range of genetic expressions of a particular traitan evolutionary biologist would credit?
When natural selection results in a shift toward the average of a range of genetic expressions of a particular trait, an evolutionary biologist would credit stabilizing selection. This type of selection favors intermediate phenotypes and reduces variation in a trait, enhancing the survival and reproductive success of individuals that exhibit average traits. As a result, extreme variations are selected against, leading to a more uniform population in that trait.
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 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.
Through natural selection a trait that is favorable will become an alternate trait that is less favorable?
more frequent than
What determines which trait will be passed on to the next generation in the greatest frequency?
natural selection
How can organisms be produced with desired trait?
Through selective breeding or by natural selection.
Did natural selection give rise to our ability to drive automobiles?
No, our ability to drive automobiles is not a trait that has evolved through natural selection. Driving is a learned skill and is not influenced by genetic traits that are subject to natural selection.
How does natural selection favor an organism's heritable trait?
Natural selection favors a trait by increasing its frequency in a population. Natural selection is differential reproductive success. If one variant of a trait enables an organism to have and raise more offspring successfully than other variants in a particualr environment, then it will become more common in the population.
When organisms with certain desirable trait are mated?
Natural selection is when organisms with a desirable trait mate and produce babies with that trait. The process of elimination will eventually diminish any that do not have that trait/
Natural selection can only act upon a certain trait if the trait is?
Heritable, meaning that it can be passed down from one generation to the next through genetic inheritance. Without a genetic basis, natural selection would not be able to change the frequency of that trait in a population over time.
What terms describes natural selection that acts against intermediate forms of a polygenic trait to increase genetic variation while not changing the average value of a trait within?
Disruptive selection
Can natural selection act on a population with no variation traits?
The trait is the same for all organisms.
What is disputive selection?
Disruptive selection is a type of natural selection that favors extreme traits over the average trait, leading to the divergence of characteristics within a population. This process can result in the formation of two distinct phenotypic groups with reduced variation between them.
