Question

Biology

Posted 6 months ago

`what is the gene frequency use the hardy-weinberg equation`

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Answer from Sia

Posted 6 months ago

Answer

The gene frequency in a population can be calculated using the Hardy-Weinberg equation, which is $p^2 + 2pq + q^2 = 1$, where $p$ and $q$ represent the frequency of the dominant and recessive alleles, respectively.

Solution

a

Define allele frequencies: In the Hardy-Weinberg equation, $p$ represents the frequency of the dominant allele, and $q$ represents the frequency of the recessive allele in the population

b

Hardy-Weinberg equation: The equation $p^2 + 2pq + q^2 = 1$ describes the distribution of genotypes in a population that is not evolving

c

Calculate allele frequencies: If the frequencies of the genotypes are known, the allele frequencies can be calculated. For example, if the frequency of the homozygous dominant genotype ($AA$) is given as $p^2$, and the frequency of the homozygous recessive genotype ($aa$) is given as $q^2$, then $p$ can be calculated as the square root of the frequency of $AA$, and $q$ can be calculated as the square root of the frequency of $aa$. The frequency of the heterozygous genotype ($Aa$) is represented as $2pq$

Key Concept

Hardy-Weinberg equilibrium

Explanation

The Hardy-Weinberg equation is a mathematical representation of the genetic equilibrium within a population where allele frequencies do not change from generation to generation in the absence of evolutionary influences.

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