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The distribution of alleles in a population - APEX

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Anonymous

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4y ago
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9y ago

Allele frequency is the frequency (proportion) of alleles in a population. It can be expressed as a percentage or a decimal.

For example, suppose a population has 10 individuals and there are two alleles (A and a) of a gene. Suppose the individuals are as follows:

4 AA individuals = 8 A alleles

4 Aa individuals = 4 A alleles and 4 a alleles

2 aa individuals = 4 a alleles

So there are (8 + 4) = 12 A alleles in the population and (4 + 4) = 8 a alleles in the population.

The frequency of A alleles is therefore 12/20 = 0.6 or 60%.

The frequency of a alleles is 8/20 = 0.4 or 40%.

(Notice that the total number of alleles equals 1.0 or 100%.)

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9mo ago

The allele frequency is the proportion of a specific allele in a population's gene pool. It represents how common a particular allele is within a population relative to other alleles at the same gene locus. It is often expressed as a decimal or percentage.

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What is an example of allele frequency?

An example of allele frequency is when in a population of 100 individuals, 60 individuals have the dominant allele (A) for a specific gene, while 40 individuals have the recessive allele (a). The frequency of the dominant allele (A) would be 0.6, and the frequency of the recessive allele (a) would be 0.4.


If an allele makes up one half of the frequency of a populations allele for a given trait it's allele frequency is?

its not anything.


Could you define Minor and major allele frequency?

Minor allele frequency (MAF) is the frequency at which the less common allele appears in a particular population. Major allele frequency (MAF) is the frequency at which the more common allele appears in a particular population. They are useful measures for studying genetic variation within populations.


The change in allele frequency?

Random change in allele frequency is called genetic drift.


How do you use Allele Frequency in a sentence for biology?

Allele frequency refers to the proportion of a specific allele in a population's gene pool. For example, in a population of birds, the allele frequency for the gene that determines feather color might be 0.7 for the brown allele and 0.3 for the white allele.


What is the relationship between allele frequency and genotype frequency in a population?

The allele frequency in a population determines the genotype frequency. Allele frequency refers to how often a particular version of a gene appears in a population, while genotype frequency is the proportion of individuals with a specific genetic makeup. Changes in allele frequency can lead to changes in genotype frequency within a population over time.


The number of times an allele occurs in a gene pool?

The frequency of an allele in a gene pool is determined by counting the number of copies of that allele in a population. This frequency can change through evolutionary processes such as genetic drift, natural selection, mutation, and gene flow. Tracking allele frequencies helps scientists study population genetics and evolutionary dynamics.


What Is the percentage of a particular allele in a population?

Allele frequency.


Can the genotype in a population change with the allele frequency changing?

Yes, the ratios of genotypes for a specific trait can change if allele frequency changes.


When allele frequency changes, a population is said to no longer be in what state?

When allele frequency changes, a population is said to no longer be in genetic equilibrium.


Will a dominant allele always increase in frequency over time?

No, a dominant allele will not always increase in frequency over time. The frequency of an allele in a population can be influenced by various factors such as natural selection, genetic drift, and gene flow.


A particular gene pool contains only two alleles G and H for an inheritable trait If allele G has a relative frequency of 42 percent what is the relative frequency of allele H?

The relative frequency of allele H would be 58 percent (100% - 42% = 58%).