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If there is a large amount of genetic drift :)

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Vicki Mendoza

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2y ago

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Are allele frequencies more likely to remain stable in large populations than in small populations?

Yes, allele frequencies are more likely to remain stable in large populations due to the effects of genetic drift being more pronounced in small populations. In small populations, random events can lead to significant changes in allele frequencies, whereas in large populations, genetic drift has less impact and allele frequencies are more likely to remain stable over time.


Genetic drift is most likely to occur in?

small populations where random events can have a significant impact on allele frequencies over time.


Genetic drift is more likely to occur in?

small populations where chance events can have a significant impact on allele frequencies due to the limited number of individuals to carry the alleles forward to the next generation.


When a small population separates from a larger population the allele frequencies change between the two populations. Which is event is most likely to occur from such frequent changes?

Genetic drift is likely to occur when a small population separates from a larger population. This is because genetic drift is the random change in allele frequencies that happens in small populations due to chance events. Over time, these changes can lead to genetic divergence between the two populations.


Genetic drift is more likely to occur in large population true or false?

False. Genetic drift is more likely to occur in small populations where chance events can have a greater impact on allele frequencies. In large populations, genetic drift is typically less influential compared to other evolutionary forces.


Does natural selection on single-gene trait cannot lead to changes in allele frequencies?

Natural selection acting on a single-gene trait can lead to changes in allele frequencies within a population. If individuals with a certain allele have a selective advantage, they are more likely to survive and reproduce, leading to an increase in the frequency of that allele in the population over time. This process is known as directional selection.


How does population size affect the likelihood of changes in allele frequencies by chance alone?

Mutation rates are small but constant. With a typical mutation rate of 1 x 10-6, it is expected that 1 out of a million individuals in a population will carry the mutation. If the population size is small (10,000 or fewer individuals), the probability that the mutation will be present is small (~1% with 104 individuals). If population sizes are large (107 or more individuals), the probability that the mutation will be present is large (~10 mutants expected if 107 individuals are in the population). Mutations can be lost from populations through genetic drift, and large populations experience less genetic drift than small populations. Thus mutations are more likely to exist and persist in large populations than in small populations.


The work of hardy and weinberg led to what statement about evolution?

The Hardy-Weinberg principle provides a mathematical model to predict genotype frequencies in a population that is not evolving. If genotype frequencies in a population do not match the predicted frequencies, then evolution (such as genetic drift, natural selection, or gene flow) is likely occurring.


Which set of conditions would most likely cause a change in gene frequency in a sexually reproducing population?

A change in gene frequency in a sexually reproducing population is most likely caused by conditions such as natural selection, genetic drift, and gene flow. Natural selection can favor certain traits, leading to differential reproduction among individuals. Genetic drift can cause random changes in allele frequencies, especially in small populations. Additionally, gene flow, or the migration of individuals between populations, can introduce new alleles and alter gene frequencies.


What is genetic drift most likely to occur in?

Genetic drift is most likely to occur in small populations where random events can have a greater impact on allele frequencies. It is also more common in isolated populations with limited gene flow from other populations.


A flood kills most of the ants that live near a river. After the flood one population of ants grows rapidly but its allele frequencies are different from the frequencies before the flood. What does th?

The flood likely caused a genetic bottleneck, reducing the genetic diversity of the ant population. The rapid growth after the flood may have allowed new mutations to become more prominent, leading to changes in allele frequencies. This could result in a genetic drift or selection event.


What kinds of populations are affected by genetic drift?

Genetic drift occurs in all finite populations. However the effects of drift are more pronounced in smaller populations than in large ones. Meanwhile, even though they are more present in smaller populations, the drifting is more likely to occur in larger populations because of the larger number of different genetic combinations present. Throughout evolution of populations, genetic drifting effects all types of population sizes, though it is more likely in larger populations but more present in smaller populations.