What does the Hardy Weinberg equation tell us?
The Hardy-Weinberg equation is a mathematical equation that can be used to calculate the genetic variation of a population at equilibrium. If the p and q allele frequencies are known, then the frequencies of the three genotypes may be calculated using the Hardy-Weinberg equation.
How do you use the Hardy Weinberg equation?
For a population in genetic equilibrium: p + q = 1.0 (The sum of the frequencies of both alleles is 100%.) This page contains all the information you need to calculate allelic frequencies when there are two different alleles.
What is the importance of the Hardy Weinberg equation?
Importance: The Hardy-Weinberg model enables us to compare a population’s actual genetic structure over time with the genetic structure we would expect if the population were in Hardy-Weinberg equilibrium (i.e., not evolving).
What does P and Q stand for in the Hardy Weinberg equation?
This has become known as the Hardy-Weinberg equilibrium equation. In this equation (p² + 2pq + q² = 1), p is defined as the frequency of the dominant allele and q as the frequency of the recessive allele for a trait controlled by a pair of alleles (A and a).
How do you calculate P and Q?
To find q, simply take the square root of 0.09 to get 0.3. Since p = 1 – 0.3, then p must equal 0.7. 2pq = 2 (0.7 x 0.3) = 0.42 = 42% of the population are heterozygotes (carriers).
What is the null hypothesis of the Hardy Weinberg model?
The Chi-Square test for Hardy-Weinberg equilibrium assumes the “null hypothesis” – that is, the observed genotype frequencies are not significantly different from those predicted for a population in equilibrium.
How do you test for Hardy Weinberg equilibrium?
To determine if our pea population is at Hardy-Weinberg equilibrium, we need to plug in our values of p and q into the above equation and see if these genotype frequencies match those we initially calculated. If the population is in Hardy-Weinberg equilibrium, the genotype frequencies should be 0.49 AA, 0.42 Aa, and .