# What does PQ represent in Hardy Weinberg?

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Which genotype does pq represent in the Hardy-Weinberg equation? one that has a dominant allel and a recessive allele. one that has two dominant alleles.

## What is PQ in Hardy-Weinberg?

M.Ed., Stanford University. The Hardy-Weinberg Law is an equation for calculating the frequencies of different alleles and genotypes in a population in genetic equilibrium and expressed by the formula p + q = 1 where p is the frequency of the dominant allele and q is the frequency of the recessive allele.

## Why is the probability of DD equal to 2 PQ?

Dd is equal to 2pq because there are two ways to be heterozygous in a cross as illustrated in the Punnet square below. p represents the frequency of the dominant allele and q represents the frequency of the recessive allele.

## Is P Q 1 always true?

Notice that p and q sum to 1 -> 0.7 + 0.3 = 1. This is always true if there are only two alleles. A good check on your math is to calculate these independently of each other and check that they sum to 1.

## What does 2pq stand for?

What does 2pq stand for? the frequency of the heterozygous genotype.

## Why is P and Q 1?

Because there are only two possible alleles, we can say that the frequency of p and q together represent 100% of the alleles in the population (p+q=1).

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## What do p 2 2pq and Q 2 represent?

In the equation, p2 represents the frequency of the homozygous genotype AA, q2 represents the frequency of the homozygous genotype aa, and 2pq represents the frequency of the heterozygous genotype Aa.

## Why is there a 2 in 2pq?

The term p2 represents the frequency of dominant homozygotes (AA) and the term q2 represents the frequency of recessive homozygotes (aa). p represents the allele frequency of allele A, and q represents the allele frequency of the allele a.

## How do you calculate Hardy Weinberg P and Q?

To determine q, which is the frequency of the recessive allele in the population, simply take the square root of q2 which works out to be 0.632 (i.e. 0.632 x 0.632 = 0.4). So, q = 0.63. Since p + q = 1, then p must be 1 – 0.63 = 0.37.

## What is the probability of DD?

So for parents who both have genotype Dd, there is a 25% probability that their offspring is DD, a 25% probability that the offspring is dd, and a 50% probability that the offspring is Dd.

## Why is Model 1 labeled selective mating?

Why is Model 1 labeled “Selective Mating”?-It is labeled selective mating because they specifically selected beatles who were homozygousrecessive and heterozygous and mated them with each other.

## What does P Q equal?

The equation. p + q = 1. describes allele frequencies for a gene with two alleles. (This is the simplest case, but the equation can also be modified and used in cases with three or more alleles.) If we know the frequency of one allele (p) we can easily calculate the frequency of the other allele (q) by 1 ó p = q.

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