Using the counting method explained, calculate the allele frequencies for the population.
Understand the Problem
The question is asking how to calculate the allele frequencies for a population based on the counting method detailed in the example. This involves identifying the frequencies of different genotypes and using those to find the overall frequency of a specific allele.
Answer
The frequency of allele $e$ is given by the equation $f(e) = f(ee) + \frac{f(Ee)}{2}$.
Answer for screen readers
The frequency of the allele $e$ is calculated using: $$ f(e) = f(ee) + \frac{f(Ee)}{2} $$
Steps to Solve
- Identify the given frequencies
In the equation provided, you need to identify the frequencies of the different genotypes, specifically $f(ee)$ and $f(Ee)$. These values should be known or counted from the population data.
- Substitute the frequencies into the equation
Using the identified genotype frequencies, plug them into the equation: $$ f(e) = f(ee) + \frac{f(Ee)}{2} $$
- Calculate the allele frequency $f(e)$
After substituting the values, perform the calculation to determine the frequency of the allele $e$.
The frequency of the allele $e$ is calculated using: $$ f(e) = f(ee) + \frac{f(Ee)}{2} $$
More Information
This formula helps to find the frequency of a specific allele in a population based on genotype counts. The factor of $\frac{1}{2}$ for the heterozygote $f(Ee)$ accounts for the fact that only one of the two alleles in a heterozygous individual contributes to the frequency of allele $e$.
Tips
- Not using heterozygote frequency correctly: Remember that the heterozygote contributes half to the frequency of the specific allele.
- Forgetting to correctly count alleles: Ensure that all counts are correct when identifying $f(ee)$ and $f(Ee)$.
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