0
Which can adapt to change alleles offspring individual or populations?
Wiki User
∙ 8y ago
It is populations which adapt. Alleles are passed on or not, offspring and individuals survive or not.
Wiki User
∙ 8y ago
Add your answer:
Earn +20 pts
What phenotype frequency in a population changes after each generation. What would most likely be causing this?
In population genetics the frequency of individual alleles remain constant as long as alleles are neither selected for or against. Phenotypic frequency varies based on the relative frequency of the various dominant and recessive alleles in the population. Further, if selection is taking place phenotype will tend to change in the direction of the allele selected. If the population is small enough there is also the factor of genetic drift, which can change phenotype in one direction within a few generations. Populations are certainly being acted on and alleles selected whether they are obvious phenotypically...if these traits are linked with ones that are visually apparent the change will manifest phenotypically but the change occurs because of linkage to the selected trait as opposed to by selection for the phenotypically obvious one. Some traits give an advantage.
Can mutations be passed from parents to offspring?
You can probably get a better idea from Wikipedia's article on Mutations: http://en.wikipedia.org/wiki/Mutation
Are new alleles made by natural selection?
No - natural selection does not create new alleles. Variation in alleles needs to exist in the population in order for natural selection to occur. Natural selection will involve the change in allele frequencies over time, but it does not create new alleles. New alleles are the result of mutations.
When offspring show a blend of the parents traits one allele is dominant over the other?
The results in the offspring hinge on the genetic make up of the parents. Each expressed trait is either the result of a dominant or recessive phenotype. The relative dominance or recessiveness of the alleles doesn't change only the rate at which they are expressed based on the allele present for each obseerved trait in the parents.
What is individual changes?
individual change is the changes that happen to you. individual change have many meanings it can be individual change on your body or an environment.
What happens to a populations alleles as they change one time?
Evolution is the change in the frequency of alleles of a population of organisms over time.
How can populations change in size?
the populations can change in size because there could be more of the offspring.
What hsa to change from generation to generation in an evolving population?
The frequency of the populations alleles. Their gene frequency must change to have evolution.
How is a hybrid zone most likely to change over time if hybrid offspring have higher fitness than both parental populations?
If hybrid offspring have higher fitness than both parental populations, the hybrid zone is likely to expand over time as hybrids outcompete the parental populations. This can result in genetic swamping, where the hybrid gene pool replaces that of the parental species. Over time, this can lead to the eventual fusion of the two parental populations into a single hybrid population.
Why is it that only populations evolve not individuals?
Populations evolve as changes in genes are passed down from parent to offspring. When a genetic change is passed down, it is there with the offspring organism from the start of its life and can affect how it develops. The organism with the altered genes can then pass those changes down to its own offspring, and thus the change can affect a population over the course of generations. So evolution occurs not by individuals changing, but from each new generation being slightly different from the previous one. An individual organism keeps the same set of genes it is born with through its entire life.
Does natural selection require small population size?
No. Natural selection works in all populations. However, new alleles spread more slowly in large populations; the large size has a stabilizing effect. So one should expect large populations to change more slowly than smaller populations.
What is the process for genetically changing goats?
You can't change them into something they're not. If you want to change an individual's offspring characteristicstha's called selective breeding. Genotypical and/or phenotypical.
How are speciation and microevolution different?
Evolution and speciation. ( microevolution is imprecise ) Alleles can change over time in a population of organisms without any great change in the phenotype or behavior of a species. Then, to keep it simple, a geographic barrier arises between portions of the population and they can no longer interbreed, Mutations happen in the separate populations and evolution can take two different paths now with natural selection driving the winnowing of variations so that adaptive change is happening in the immediate environment of the sundered populations. Given enough time the two populations gene pools will have such a variance in the alleles contained in those two gene pools that two different species will arise.
How do changes at the DNA and gene level change populations to eventually form new species?
I think you're talking about genetic mutation... If the trait is dominant then it will be spread to its offspring and if it doesn't hinder the offspring's survival then the trait will continue to be passed on to new generations.
Why can't an individual in a population evolve?
Basically it is because they die and any mutations in germ lines, genetic recombinations and any beneficial variations die with them. Only populations evolve because the frequency of alleles in population gene pools change over time due to the selection of individuals who pass on these frequency changing traits to progeny.
What phenotype frequency in a population changes after each generation. What would most likely be causing this?
In population genetics the frequency of individual alleles remain constant as long as alleles are neither selected for or against. Phenotypic frequency varies based on the relative frequency of the various dominant and recessive alleles in the population. Further, if selection is taking place phenotype will tend to change in the direction of the allele selected. If the population is small enough there is also the factor of genetic drift, which can change phenotype in one direction within a few generations. Populations are certainly being acted on and alleles selected whether they are obvious phenotypically...if these traits are linked with ones that are visually apparent the change will manifest phenotypically but the change occurs because of linkage to the selected trait as opposed to by selection for the phenotypically obvious one. Some traits give an advantage.
The phenotype in a population changes after each generation which would most likely be causing this?
organisms compete for shelter
